Newsgroup sci.engr.mech 27098

Directory

Subject: ANSYS -- From: dorios@enternet.com.au (DOREL IOSIF)
Subject: Re: Special solvent -- From: Art_J
Subject: HELP: Need Cosmos/M crack program -- From: l36373@alfa.ist.utl.pt (Antonio Gladstone B.J. Paes)
Subject: Shock Damping Rates -- From: andy@engr.mun.ca (Andy Harbin)
Subject: Re: Special solvent -- From: K Havlinek
Subject: Re: Shock Damping Rates -- From: djh@osc.edu (David Heisterberg)
Subject: Re: STRESS RELIEVING WITH SUB-RESONANCE VIBRATIONS -- From: "Richard L. Citerley"
Subject: Re: HELP: Need Cosmos/M crack program -- From: cpollard@csn.net (Chris Pollard)
Subject: Siemens motor Vibration limits -- From: Stephen Mitchley
Subject: Re: bicycle engine, where to find one ? -- From: Dan Bollinger
Subject: Re: HELP quick connect/disconnect systems -- From: Dan Bollinger
Subject: CFP: Robotics & Manufacturing -- From: warwodad@cuug.ab.ca (Dennis Warwodad)
Subject: The Job Shop Network? -- From: plasengjim@aol.com (Plasengjim)
Subject: Re: Comma versus decimal point -- From: Mike
Subject: Help : Siemens motor vibrations -- From: Stephen Mitchley
Subject: Re: Special solvent -- From: glyford@us1.channel1.com (Glenn S. Lyford)
Subject: vibrations in motors -- From: Stephen Mitchley
Subject: Re: friction: impossible to modelize? -- From: Bill Schuh
Subject: Starting Motor Pinions and Ring Gears -- From: Scott McKenzie
Subject: Re: Question: How to get starting ME job -- From: michael bush
Subject: Re: Question: How to get starting ME job -- From: hippy@acca.nmsu.edu (Hippy The Original)
Subject: Re: aircraft diesel powerplants -- From: weir@prandtl.crd.ge.com (Michael Weir)
Subject: Re: Algor Houdini experiences??? -- From: bailey5203@aol.com (Bailey5203)
Subject: Looking for plastics data -- From: parsin@bright.net (DOZD)
Subject: Finding an M.E. job in the Bay Area -- From: Dave Winn
Subject: ENGINEERING AND SCIENCE GRADUATES in Holland -- From: Elio Lo Conte
Subject: Help: Manufacture of aircraft propellers before NC -- From: u2142010@vmsuser.acsu.unsw.edu.au (David M.)
Subject: Re: Shock Damping Rates -- From: Doug Milliken
Subject: MESHLESS METHODS -- From: Stef Pillaert
Subject: Energy Conservation & Thermal Imaging for Buildings -- From: jkaminsk@gmu.edu (R. James Kaminski)
Subject: Re: Your Most Often Used References -- From: kbailey@emuvax.emich.edu (Mr. Kenneth Bailey)
Subject: GREAT LIST OF MECH ENG MILITARY TECH REPTS AVAILABLE -- From: Michael Ravnitzky
Subject: Re: Your Most Often Used References -- From: ajmosk@engin.umich.edu (Andrew Moskalik)
Subject: Re: Siemens motor Vibration limits -- From: Michael Meyer
Subject: McMaster-Carr (was Re: Your Most Often Used References) -- From: "Adam E. Ek"
Subject: Need help on ANSYS -- From: EHWong
Subject: Re: Question: How to get starting ME job -- From: marcz@news.an.hp.com (Marc Zeitlin)
Subject: Re: Special solvent -- From: bk@sydney.DIALix.oz.au (Bruno Karlin)
Subject: Boatbuilding Industry Home Page -- From: Gary Polson
Subject: Fastener Load Distribution using FEA -- From: Carl Sawyer

Articles

Subject: ANSYS
From: dorios@enternet.com.au (DOREL IOSIF)
Date: Tue, 8 Oct 1996 19:57:49
Conference Announcement and Call for Papers
_______________________________________________________________________
1997 ANSYS Conference
Practical Finite Element Analysis Applications in Industry
MELBOURNE-AUSTRALIA
Sponsors:
Worley FEA
Providing Engineering Solutions to Industry
ANSYS, Inc
Silicon Graphics Computers
Quantas
_______________________________________________________________________
25 - 27 June 1997
Sheraton Towers, Southgate, Melbourne
The Sheraton Towers is located in the exciting Southgate Arts and Leisure Precinct and on the 
banks of the Yarra River, the hotel is a five minute walk from the city’s 
shopping centre and 20 kilometres from Melbourne International Airport  The 
Sheraton Towers Southgate award winning service has been acknowledged by the 
following awards;· Rated No 1 CBD conference venue in Australia, 1995 
Australia’s Top 100 conference venues , National Business Bulletin May 1995· 
Recipient of the M& C Gold Key Award Asia/Pacific, October 1995.· Recipient 
CIM Accolade Ward 1995, Convention and Incentive Marketing Why Finite Element 
Analysis?
Many industries are realising that yesterday's answers are not always tomorrow's solutions. 
 Companies are re-engineering their design through manufacturing processes 
with finite element analysis (FEA) design and simulation technology to provide 
better products, faster, and at a lower cost.
The ANSYS family of products provides a very flexible engineering environment; 
 it is integrated with more CAD packages than any other analysis package, and 
runs on a wide range of hardware from PCs to supercomputers.  Worley FEA, 
exclusive distributors for ANSYS in Australia and NZ, invites you to the 1997 
ANSYS Conference to see and hear about practical engineering applications of 
FEA technology.  This three-day event will be held at the Sheraton Towers, 
Southgate, Melbourne on June 25-27, 1997.  The first day will be devoted to 
training on advanced ANSYS capabilities conducted by ANSYS, Inc developers.
This conference is your best opportunity to meet ANSYS users from a range of industries 
around Australia, and see how others are using the program.  ANSYS, Inc 
developers and management, and Worley FEA's team of experienced analysts will 
be avaialble to discuss how ANSYS can help with your paritcular design needs.  
Who Should Attend?
This conference is geared towards design engineers and FE analysts, as well as business
 and engineering managers.  Attendees can learn more about the ANSYS program's 
capabilities, using FEA to simplify their product design / verification and 
prototyping processes, and maximize the benefits of their CAE/CAD investment.
Conference program at a glance
	am	pm	evening
Tues 1 July 1997			Registration
Wed 25 June1997	Registration
Training seminar:
Upgrading to ANSYS 5.3	Training seminar
Explicit dynamics and metalforming simulation using LSDYNA-3D	
Thurs 26 June1997	Registration
Keynote address
Technical Session 1	Technical Session 2	Conference Dinner
Fri 27 June 1997	Technical Session 3	Technical Session 4
Close	
Sat 28 June 1997	Social Program
Call for papers
Papers describing ANSYS applications in industry and research are invited.  
Abstracts of no more thatn 300 words should be submitted to the Conference 
Secretariat as soon as possible, or at the latest by 31 January 1997. 
Abstracts should clearly state the title, objectives, assumptions, methodology 
and results of the project, to be detailed in the paper.  Completed 
manuscripts must be submitted to the Conference Secretariat no later than 15 
April 1997.  The Proceedings of the Conference will be available at the time 
of the Conference.
Abstracts and manuscripts should be emailed/posted/faxed to the Conference Secretariat:
Dorel Iosif
Senior FE Analyst
Worley FEA (ANSYS)
L16, 300 Flinders Street
Melbourne 3000
Direct: 61-3-9205 0414
Fax: 61-3-9205 0505
email: diosif@worley.com.au
Summary of Deadlines
Submission of Abstract	31 January 1997
Notification of acceptance of Abstract	28 February 1997
Submission of final manuscript	15 April 1997
Travel
Qantas is the official carrier for the 1997 ANSYS Conference, offering an exclusive discount 
for all attendees flying Qantas domestic to the Conference. Quote Qantas 
Reference # when making your reservation with Qantas or your travel agent.  
Advanced reservations and ticketing of seven days is required.
Accommodation
Melbourne has more than 14,500 conveniently located hotel rooms priced to suit any budget.  
Over 5,000 four and five star rooms being added during 1997. Hotel listings 
with prices and contact details are available on request from 
Geraldine Campbell
Ph: 03 9205 0492 or
Fax: 03 9205 0505 or
Email gcampbel@worley.com.au
Organising Committee
Conference Secretariat
Dorel Iosif
Review Panel	
Ayad Ashour
Joe Corvetti
Jianfu Hou
Dorel Iosif
Joseph Wong
Organiser	
Geraldine Campbell
_______________________________________________________________________
About Melbourne
Melbourne is a city of parks, gardens, boulevards and hundreds of outdoor cafes. 
You’ll find loads of attractions suitable for all types of social programs or 
pre and post conference travel. There are over 4,500 restaurants representing 
over 70 national cuisines; Melbourne is undoubtedly Australia’s arts, 
entertainment, fashion and nightlife capital.  And nowhere in Australia can 
you find more love and pursuit of sports than in Victoria, with its immense 
range of specialised facilities.Despite the jokes Melbourne enjoys mostly 
moderate weather - cool to mild in spring, warm to hot in summer, mild in 
autumn and brisk in winter. The rainfall is fairly evenly spread and seldon 
heavy, with one of the lowest readings for an Australian state capital city.  
In June you can expect an average maximum temperature of 14°C (68°F) and an 
average minimum of 7°C (45°F). Major city shopping centres are open on 
Saturday and Sunday with late night shopping on Fridays
Return to Top
Subject: Re: Special solvent
From: Art_J
Date: Tue, 08 Oct 1996 08:19:11 -0700
Robert Perkins wrote:
> 
> This sounds facetious, but it's not.
> 
> In hearing aids, at least in mine, there is a polyethelene
> guard over the end of the part that goes into the ear canal.
> This guard is used to keep ear wax from entering the hearing
> aid unit.  The guard, however, when it does its job collects
> ear wax and is usually discarded.
> 
> I would like to drop these ear wax guards into a solution that
> will dissolve the wax.
> 
> I've tried alcohol but it doesn't work well.  What do you
> think of trying boiling alcohol?
> 
> Other ideas?
> 
> Thanks.
> 
> Bob Perkins
> bobp@netcom.com
> .
> .
> .How about Debrox? We used to put this in our children's ears, when they 
were smaller of course, to break down the wax and it is available over 
the counter at the pharmacy. Just a thought.
-- 
Art Jantzen
Vision Research, Inc.
Wayne, NJ USA
art@visiblesolutions.com      http://www.visiblesolutions.com
Return to Top
Subject: HELP: Need Cosmos/M crack program
From: l36373@alfa.ist.utl.pt (Antonio Gladstone B.J. Paes)
Date: 8 Oct 1996 15:08:46 GMT
Hi
I'm a student at IST in Portugal and I need a program that cracks the
hardware key that limits Cosmos/M program from using all of it's capacities.
Thanks in advance
Antonio Paes
PS: Please email to L36373@alfa.ist.utl.pt as I don't come too often to newsgroups.
Return to Top
Subject: Shock Damping Rates
From: andy@engr.mun.ca (Andy Harbin)
Date: Tue, 8 Oct 1996 12:28:52
Could someone please educate me as to what units most shock manufacturers 
quote their damping rates in?  A vibrations text that I'm using uses units of 
mass per time (eg. kg/s or lbs/s).  I need to be able to convert these units 
to those used by the shock manufacturer so I can select the proper rate for my 
application.  Some rates that I've seen include in.lbs or just numbers.  What 
do these mean?
Your help would most kindly be apprecuiated.
Thanks,
Andy Harbin
Senoir Mechanical Engineering Student
Formula MUN, Suspension Design
Memorial University of Newfoundland
CANADA
Return to Top
Subject: Re: Special solvent
From: K Havlinek
Date: Tue, 08 Oct 1996 11:15:56 -0400
Robert Perkins wrote:
> ...I would like to drop these ear wax guards into a solution that
> will dissolve the wax.
> 
> I've tried alcohol but it doesn't work well.  What do you
> think of trying boiling alcohol?
> 
> Other ideas?
Try hydrogen peroxide.
Ken Havlinek
Return to Top
Subject: Re: Shock Damping Rates
From: djh@osc.edu (David Heisterberg)
Date: 8 Oct 1996 15:57:20 GMT
Andy Harbin (andy@engr.mun.ca) wrote:
: Could someone please educate me as to what units most shock manufacturers 
: quote their damping rates in?  A vibrations text that I'm using uses units of 
Let's see, dampers produce a force roughly proportional to velocity
in opposition to the motion.  So we get
    F   kg m   m   kg    Looks like kg/s is just what you want after
    - = ---- / - = --    cancelling out units.  Kind of like expressing
    v    s2    s   s     mileage in inverse acres!
Dave Heisterberg
Return to Top
Subject: Re: STRESS RELIEVING WITH SUB-RESONANCE VIBRATIONS
From: "Richard L. Citerley"
Date: Tue, 08 Oct 1996 09:11:16 -0700
RONALD MARTIN wrote:
> 
> I am a structural engineer who has a Client asking for general
> information on stress-relieving with the use of sub-resonance
> vibrations.  I am not familiar with it (out of my field) but am
> trying to get some basic opinions about the validity of its use.  He
> is thinking about buying the equipement.
> 
> He is particularly interested in its use on rolls with protective
> coatings to be applied to them.
> 
> Some of his questions involve:
>          1) is the welding better on it
>          2) is it better in this appliation than thermal stress
>             relieving
> 
> If anybody has any info --it will be appreciated.There have several articles written in the ASME about the vibration 
stress relief HOAX.  If any manufacturer suggests that their system will 
do the job, suggest that a blind test be made.  Three specimens should be 
stress relieved using normal methods and three specimens using the 
vibration method.  Send the specimens to an independent lab for testing. 
I'll bet that the vibration-stress relief people will not submit to the 
tests.  It has been tried before and no relief was found.
Thermal methods of stress relief brings the state of stress within a body 
to a point where the material reaches a transition (phase) temperature.  
A relaxation takes place and the state of the material is "normalized."  
In order for vibration methods to work, a cold working process must take 
place.  This means that the orginal residual state is masked by a higher 
state of stress.  Since we are dealing with an oscillatory motion, the 
effective stress will be both tension and compression.  If only tensile 
residual stresses were present in the first place, then the induced 
compressive stresses from the vibration would cause additional and 
unforseen problems.  For most steels, they follow the max. shear failure 
law.  This would create a failure  in another direction.
If you are trying to eliminate the progressive growth of cracks, I have 
tried a laser induced method that has shown to double the life of the 
specimen.
Richard L. Citerley, P.E.
209-295-8655
citerley@volcano.net
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Subject: Re: HELP: Need Cosmos/M crack program
From: cpollard@csn.net (Chris Pollard)
Date: 8 Oct 1996 18:29:18 GMT
Antonio Gladstone B.J. Paes (l36373@alfa.ist.utl.pt) wrote:
: hardware key that limits Cosmos/M program from using all of it's capacities.
: Thanks in advance
: Antonio Paes
Presumably when this guy graduates he will do all his
engineering/programming for free because everybody will expect to copy his
work for nothing.
I'm not sure anybody would hire him though - certainly not SRAC
Return to Top
Subject: Siemens motor Vibration limits
From: Stephen Mitchley
Date: Tue, 08 Oct 96 19:09:12 PDT
Could anyone please supply me with details on the vibration limits in mm/s of 
siemens motor in the axial and radial directions. The specs are
355kw, 50hz, 445A, 525V, 3600rpm
the serial no appears to be either :
	1 N 133 ICI F
or	465512/1993 MB3 ICI F
We are currently experiencing vibrations of the order 
of 2.5mm/s radially and 6mm/s axially
Return to Top
Subject: Re: bicycle engine, where to find one ?
From: Dan Bollinger
Date: Mon, 07 Oct 1996 12:09:14 -0700
Paul Kurowski wrote:
> 
> Would anybody know where can I buy a low power (0.5
> - 1.5 HP) gasoline engine, that attaches to a
> regular bicycle ? I remember such little engines
> from Europe, but in Ontario, Canada they are
> unheard of. I have been looking hard to find one
> for my son but had no luck.
> 
> Any advice would be mostly appreciated.
> 
> Paul Kurowski
> 
> e-mail:
> kurowska@julian.uwo.ca
Your cheapest, readiest supply may be a gasoline powered weed-eater, 
cannabalize the engine!
Good Luck;
Dan Bollinger
Industrial Designer
Return to Top
Subject: Re: HELP quick connect/disconnect systems
From: Dan Bollinger
Date: Mon, 07 Oct 1996 12:07:44 -0700
Doug Krokosz wrote:
> 
> One of our design courses has us in groups working with several local
> manufacturers.
> 
> Our project is specifically to design a system to install/remove a 440
> kg air handling unit in a bus without any threaded fasteners in
> difficult to access locations (the back bottom or side).
> 
> any ideas.
> 
> thanks
Try Victaulic connectors, used a lot in irragation systems, and Air 
Handling Systems proprietary connectors at 1-800-438-7135.
Why not hose or flex matal tubing?  Are you familiar with the small 
diameter (about 2"), high velocity HVAC supply units for homes?
Good Luck;
Dan Bollinger
Industrial Designer
Return to Top
Subject: CFP: Robotics & Manufacturing
From: warwodad@cuug.ab.ca (Dennis Warwodad)
Date: 8 Oct 1996 12:20:17 -0600
CALL FOR PAPERS
Fifth IASTED International Conference
ROBOTICS AND MANUFACTURING
May 28-31, 1997
Cancun, Mexico
SPONSOR: The International Association of Science and Technology
for Development - IASTED
LOCATION: Cancun, Mexico
SCOPE: Topics to be covered include:
     * Adaptive Control
     * AI Techniques
     * Architectures
     * Autonomous Systems
     * Bionics/Biomechanics
     * Design Automation
     * Expert Systems
     * Flexible Manufacturing Systems
     * Fuzzy Control
     * Human/Machine Interface
     * Industrial Automation
     * Industrial Robots
     * Intelligent/Self-organizing Systems
     * Knowledge-Based Systems
     * Learning/Reasoning Systems
     * Manufacturing Systems
     * Mechatronics
     * Microrobotics
     * Mobile Robots
     * Modelling
     * Motion Planning
     * Multirobot Systems
     * Neural Networks
     * Process Control
     * Reliability/Safety/Stability
     * Robot Dynamics
     * Robot Control
     * Robot Kinematics
     * Robot Mechanisms
     * Robot Safety
     * Robust Control
     * Scheduling
     * Sensors
     * Sensor Data Fusion
     * Simulation
     * Space Robotics
     * Teleoperation
     * Virtual Reality
     * Applications - all areas
GENERAL CHAIR: T.C. Hsia, University of California, Davis, USA
PROGRAM CHAIR: Rene V. Mayorga, University of Waterloo, Canada
INTERNATIONAL PROGRAM COMMITTEE
S. Arimoto - University of Tokyo, Japan
M. Asada   - Osaka University, Japan
A. Avello - Univ. de Navarra, Spain
M.M. Bayoumi - Queen's University, Canada
Z. Bien - KAIST, Korea
G. Casalino - DIST-Universita di Genova, Italy
A. Casals - U. Politecnica de Catalunya, Spain
R. Colbaugh - New Mexico State Univ., USA
P. Dario - ARTS, Scuola Superiore S. Anna, Italy
C. de Silva - Univ. of British Columbia, Canada
A.P. del Pobil - Jaume-I University, Spain
A. Desrochers - Rensselaer Polytechnic Inst., USA
C. Doumanidis - Tufts University, USA
S. Elgazzar - National Research Council, Canada
T. Fukuda - University of Nagoya, Japan
A. Goldenberg - University of Toronto, Canada
W.A. Gruver - Simon Fraser University, Canada
J.M. Ibarra - CINVESTAV, Mexico
S. Kalaycioglu - Canadian Space Agency, Canada
V. Karri - University of Tasmania-Hobart, Australia
R. Kelly - CICESE, Mexico
O. Khatib - Stanford University, USA
P. Khosla - Carnegie Mellon University, USA
J.-H. Kim - KAIST, Korea
H. Koivo - Helsinki University of Technology, Finland
K. Kosuge - Tohoku University, Japan
S.H. Lee - JPL, USA
F. Lobo-Pereira - ISR-Porto, Portugal
R. Luo - North Carolina State University, USA
L. Luong - University of South Australia, Australia
A.A. Maciejewski - Purdue University, USA
H. Miura - University of Tokyo, Japan
Y. Nakamura - University of Tokyo, Japan
C.C. Nguyen - Catholic University of America, USA
D. Romero - UNAM, Mexico
A.C. Sanderson - Rensselaer Polytechnic Inst., USA
H. Seraji - JPL, USA
Y. Shirai - Osaka University, Korea
B. Siciliano - Universita di Napoli, Italy
J.J.E. Slotine - MIT, USA
K. Tanie - AIST-MITI, Japan
P.M. Taylor - University of Hull, U.K.
S. Tsuji - Wakayama University, Japan
M. Vidyasagar - CAIR, India
A.K.C. Wong - University of Waterloo, Canada
T. Yoshikawa - Kyoto University, Japan
J. Zurada - University of Louisville, USA
REGIONAL CHAIRS - Mexico
A. Pamanes - Tec. de la Laguna
F. Ramos - ITESM, Morelos Campus
REGIONAL PROGRAM COMMITTEE - Mexico
F. Betancourt - Tec. de la Laguna
J. Frausto - ITESM, Morelos Campus
J. Flores - Tec. de la Laguna
J.L. Gonzalez - ITESM, Monterrey Campus
A. Molina - ITESM, Monterrey Campus
J. Negrete - Univ. de Veracruz
V. Parra - CINVESTAV
L.A. Pineda - I.I.E., Cuernavaca
A. Ramirez - CINVESTAV
G. Rodriguez - I.I.E., Cuernavaca
M. Sanchez - ITESM, Monterrey Campus
V. Santibanez - Tec. de la Laguna
R. Soto - ITESM, Monterrey Campus
E. Sucar - ITESM, Morelos Campus 
SUBMISSION OF PAPERS
Three copies of the papers (maximum 12 double-spaced pages,
including figures, for regular papers; and maximum six double
spaced pages for short papers) should be received by the IASTED
Secretariat by November 25, 1996.  Please provide four keywords
to indicate the area of the paper.  Also, include a statement in
your cover letter confirming that if the paper is accepted, one
of the authors will attend the conference to present it.  Please
give the full name, affiliation, full address, telephone and fax
numbers, and email address if available.
Notification of acceptance and author kits will be mailed by
February 3, 1997.  The final manuscripts and registration payment
are due prior to March 15, 1997.  Registration fees not received
by that date may result in the paper being excluded from the
proceedings.  
IMPORTANT DATES
     Manuscripts Due               November 25, 1996
     Notification of Acceptance    February 3, 1997
     Final Manuscripts and Payment March 15, 1997
MANUSCRIPTS MUST BE SENT TO:
     IASTED Secretariat - RM'97
     #80, 4500 - 16 Ave. N.W.
     Calgary, AB
     Canada T3B 0M6
     Tel: 403-288-1195
     Fax: 403-247-6851
     Email: iasted@cadvision.com
     URL: http://www.cuug.ab.ca:8001/~warwodad/iasted.html
Return to Top
Subject: The Job Shop Network?
From: plasengjim@aol.com (Plasengjim)
Date: 8 Oct 1996 15:02:06 -0400
I have recently come across this site and found it to be really useful. 
We were looking for a plastic injection molder and found a lot of good
sources.  Has anyone else used this service?  Are there any other services
like this out there?  Please let me know.  The URL is
http://www.jobshop.com/
Thanks again for your input.
Jim
Return to Top
Subject: Re: Comma versus decimal point
From: Mike
Date: Tue, 08 Oct 1996 14:31:46 -0700
Kevin O'Connell wrote:
> 
> Mike wrote:
> [snip]
> > Also, I couldn't agree more about using
> > SI units for engineering and physics.  (I was exposed to both systems in
> > school over 20 years ago and the choice to make is obvious.)
> 
>         I might agree more with you if ANYONE truely used the SI system.
> I too was taught both for virtually my entire education.  SI was pushed
> as the "correct" system.  But there are two big problems.  1)  No one
> over here uses it.  All construction equipment, and most commerical
> equipment is marked, evaluated, rate, and sold in American (British?, English?)
(snip)
I use both also but almost always use SI for kinematics.  I don't think I 
ever computed polar inertia in 'English' units and was comfortable.
Mike
Return to Top
Subject: Help : Siemens motor vibrations
From: Stephen Mitchley
Date: Tue, 08 Oct 96 21:43:38 PDT
I'm urgently looking for specs on vibration limits in mm/s
for a siemens 525V 445A 50hz 355kw 3600rpm motor
serial no  :1N133 ICI F
or 465512/1993 MB3 ICI F
Please email me : chapel@icon.co.za if you have details on
acceptable axial and radial vibration limits.
Return to Top
Subject: Re: Special solvent
From: glyford@us1.channel1.com (Glenn S. Lyford)
Date: 8 Oct 1996 20:31:06 GMT
In article , bobp@netcom.com says...
[snip]
>I would like to drop these ear wax guards into a solution that
>will dissolve the wax.
[snip]
>
>Other ideas?
Hydrogen peroxide.  Not sure how it will react to the plastic, tho...
                                                     --Glenn
Return to Top
Subject: vibrations in motors
From: Stephen Mitchley
Date: Tue, 08 Oct 96 19:28:55 PDT
could anyone please supply me with the vibration limits
 in mm/s for a siemens 525V 445A 355 kW 3600 rpm motor?
Return to Top
Subject: Re: friction: impossible to modelize?
From: Bill Schuh
Date: Tue, 08 Oct 1996 16:10:23 -0700
Check out the latest Scientific American for an interesting article on 
friction.
Kevin O'Connell wrote:
> 
> Enrique Juaristi wrote:
> >
> > After having read some (old) references, I am almost convinced that friction
> > is almost impossible to modelize, be it analytically or numerically.
> > There are a lot of factors to be taken into account and most of them are either
> > impossible to measure or unpredictable.In the project I am working on, the
> > friction between two hot rolled steel products is being studied.
> >
> > I'd like to know whether someone knows of techniques, hypotheses,
> > experimental settings or references that could allow me to create a
> > realistic model.
> 
>
Return to Top
Subject: Starting Motor Pinions and Ring Gears
From: Scott McKenzie
Date: Tue, 08 Oct 1996 14:33:38 -0700
Is there anyone out there that knows how to layout out the relative positions 
of the ring and pinion gears for starters?  I have read SAE J543 and still 
have many questions.  The modified addendum seems to be confusing the issue. 
 Do you posistion the gears relative to one another based on their 
theoretical pitch diameter or the layout pitch diameter.  Intuition would 
tell me to use the layout diameters, but I am trying to interpret some OEM 
data and things are not adding up.
Thanks in advance and sorry if I posted this in the wrong place.
Scott McKenzie
Return to Top
Subject: Re: Question: How to get starting ME job
From: michael bush
Date: 9 Oct 1996 00:37:53 GMT
hippy@acca.nmsu.edu (Hippy The Original) wrote:
>
editted for length...
...> If I could do
>both I think that I would be a very happy employee. After looking for a
>(any) position for over a year the problem that I see is either my
>apperance (long hair), my attitude (a little cut and dry till I get to
>know people), or my grade point. And as we all know they can't take the
>first two into consideration when hireing or that would be discrimination
>(yeah right).  -- 
who says "they" can't take your attitude into consideration when deciding 
whether to hire you...  "attitude" roughly translates to "interviewing 
skills" in this case...
Return to Top
Subject: Re: Question: How to get starting ME job
From: hippy@acca.nmsu.edu (Hippy The Original)
Date: 7 Oct 1996 18:03:05 GMT
Tim Butler (butler@olivia.ch.apollo.hp.com) wrote:
: 
:    They couldn't legally decide against hiring you because of your
: color, religion, or sex, etc.  But how on earth did you come to the
: conclusion that they aren't allowed to dismiss you because of bad
: attitude or unkempt appearance?
: 
: -- 
: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=
: Tim Butler             Massachusetts Language Lab - Hewlett Packard  
: Phone: (508) 436-4307  FAX: (508) 436-5135  e-mail: butler@apollo.hp.com
Here it goes, Just because I choose to keep my hair long does not mean
that I do not keep it washed and brushed. When I go for interviews or to
drop my resume off I dress very nice, suit and tie. Sorry to disapoint but
I don't go to interviews wearing unwashed jeans and a torn t-shirt. I also
learned how to shave when I was about 16.
	Oh, well it may be time to conform. I have had professors poke fun
at my hair, and that is one of the reasons that I did not cut it (I am
funny that way ). I believe that people should be judged on there ability,
not on there appearence. But as Dr. Ricketts said "Rich, you are a
romantic". 
Rich
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Subject: Re: aircraft diesel powerplants
From: weir@prandtl.crd.ge.com (Michael Weir)
Date: Wed, 9 Oct 1996 02:48:26 GMT
In article , dickpilz@teleport.com (Dick Pilz) writes:
|> In _The_Power_to_Fly_ by L.J.K. Setright, there is mention of the Napier Nomad
|> which had 4100 SHP and weighed 3750 lbs. It was a 12-cylinder water cooled 
|> axial-turbo-compound liquid-cooled 2-stroke cylinder-ported diesel with an 
|> overall compression ratio of 45:1 (Which also means it had an EXPANSION ratio 
|> of 45:1 and THAT is where the efficiency comes from.)
In Setright's "Some Unusual Engines" (avail from SAE), there's a
beautiful cutaway drawing of the Nomad with some additional
commentary.  The closing remark is something like "...since it was, by
all accounts, a pig to start."
Highly recommended book.
MPW
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Subject: Re: Algor Houdini experiences???
From: bailey5203@aol.com (Bailey5203)
Date: 8 Oct 1996 23:19:46 -0400
Are all "hand mesh generators" the same? 
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Subject: Looking for plastics data
From: parsin@bright.net (DOZD)
Date: Tue, 08 Oct 1996 21:16:59 GMT
Does anyone know of a te for mechanical properties of plastics,
polycarbs,urethanes, etc...
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Subject: Finding an M.E. job in the Bay Area
From: Dave Winn
Date: Tue, 08 Oct 1996 21:38:36 -0700
Can someone help me to locate some good sources for a friend who's in
search of M.E. design jobs in the Bay Area?  What web sites are best to
check?  I've already looked at OCC with limited results.  What companies
are hiring in the area?
Thanks,
Dave
-- 
Dave Winn
Cisco Systems
Mechanical Engineer
ACCESS - NPI
408-527-1446
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Subject: ENGINEERING AND SCIENCE GRADUATES in Holland
From: Elio Lo Conte
Date: Wed, 09 Oct 1996 08:48:04 +0200
The European Patent Office plans to recruit a number of technical
graduates in 1997 in the Hague (Holland).
The advert you can find already at our site
http://www.xs4all.nl/~elio/epo/recrexam.htm
more information about our organization can be found at
http://www.Austria.EU.net:81/epo
Here follows the complete advert
--------------------------------
EUROPEAN PATENT OFFICE  	
We are a self-financing intergovernmental organisation which grants
patents valid throughout Europe. 
We employ nearly 4000 highly qualified staff, over half  of whom search
and examine patent applications.
___________________________________________________________
In the Hague (The Netherlands) for 1997 we are looking for
	ENGINEERING AND SCIENCE GRADUATES      
to carry out search and examination of patent applications in the
following fields:
mechanical engineering, electromechanics. 
textile chemistry, inorganic chemistry, 
electrochemistry, polymers, biochemistry,
molecular biology, genetic engineering, 
chemical engineering. 
electronics, telecommunications, television, 
computer science & technology, circuits, electrotechnics. 
Candidates should meet the following requirements:
     have a good university degree in one of the relevant fields. Some
years' professional experience would  be an advantage 
     have an excellent knowledge of one of the official languages of the
European Patent Office (English, French and German) and understand the
other two 
     want to join an international environment at the forefront of
technology 
     enjoy working with PCs on a day-to-day basis 
     be a national of one of the Contracting States of the European
Patent Organisation (Austria, Belgium, Denmark, Finland, France,
Germany, Hellenic Republic, Ireland, Italy, Liechtenstein, Luxembourg,
Monaco, the Netherlands, Portugal, Spain, Sweden, Switzerland and the
United Kingdom). 
In return, there will be permanent employment with an attractive salary
package commensurate with international employment. 
Please send your CV specifying your proficiency in the required
languages (as a text within the message, not as attachement)
to recruitment@epo.e-mail.com
or write to                       European Patent Office
                               Personnel Dept.
                               Postbus 5818
                               NL-2280 HV Rijswijk
                               Fax (+31) (70) 3403773 
(Please allow us a few weeks to deal with your application)
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Subject: Help: Manufacture of aircraft propellers before NC
From: u2142010@vmsuser.acsu.unsw.edu.au (David M.)
Date: 9 Oct 1996 08:07:14 GMT
Can anyone tell me where to find information about how aircraft
propellers (airscrews) were manufactured before NC machines were
available?  What did the machines look like that produced all those
airscrews during the 1920's ?   

I have already spent quite a bit of time searching at my universty's
library.  Titles of books or names of companies, any lead will be
helpful.
Thanking you in advance,
David M.
email: u2142010@vmsuser.acsu.unsw.edu.au
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Subject: Re: Shock Damping Rates
From: Doug Milliken
Date: Wed, 9 Oct 1996 05:31:01 GMT
Order up the Penske Damper catalog -- has some nice plots.  They use force
in pounds on the Y axis and shaft speed in inches/second on the X axis. 
Look out because they tend to plot both rebound and bump directions in
the 1st quadrant. 
We put a couple of the Penske plots (with permission) in our book,
"Race Car Vehicle Dyamics", pub. by SAE.
-- Doug Milliken
On Tue, 8 Oct 1996, Andy Harbin wrote:
> Could someone please educate me as to what units most shock manufacturers 
> quote their damping rates in?  A vibrations text that I'm using uses units of 
> mass per time (eg. kg/s or lbs/s).  I need to be able to convert these units 
> to those used by the shock manufacturer so I can select the proper rate for my 
> application.  Some rates that I've seen include in.lbs or just numbers.  What 
> do these mean?
> 
> Your help would most kindly be apprecuiated.
> 
> Thanks,
> 
> Andy Harbin
> Senoir Mechanical Engineering Student
> Formula MUN, Suspension Design
> Memorial University of Newfoundland
> CANADA
> 
> 
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Subject: MESHLESS METHODS
From: Stef Pillaert
Date: 9 Oct 1996 08:39:28 GMT
I'm looking for any information on 'Meshless Methods' (i.e. Finite 
Element Methods, but with no 'elements' involved, just using 'nodes', so 
meshing operations would be unnecessary). Possible keywords: 'Element 
Free Galerkin Method (EFGM)', 'hp-Clouds Method', 'Partition of Unity 
Finite Element Method (PUFEM)', 'Reproducing Kernel Particle Method 
(RKPM)', ...
Do you know where to look for information (books, articles, web-sites, 
software, anything ...), please let me know.
Thanks!
Stef Pillaert, Belgium.
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Subject: Energy Conservation & Thermal Imaging for Buildings
From: jkaminsk@gmu.edu (R. James Kaminski)
Date: Mon, 07 Oct 1996 12:48:47 GMT
Can anyone point me to a site that deals with IR imaging & heat loss
for buildings?  Thanks.
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Subject: Re: Your Most Often Used References
From: kbailey@emuvax.emich.edu (Mr. Kenneth Bailey)
Date: 8 Oct 96 22:47:44 EDT
In article , Jim Papadopoulos  writes:
> Russell  writes:
>  
>>I agree; this is a great catalog - but how did you get one?  I've tried 
>>to replace our office's now 10 year old copy for the last 5 years - 
>>they're always friendly on the phone and promise to send it, but nothing 
>>ever shows up (and we're a small enough office that I'm sure it's not 
>  
> Now there's a clear test of ability -- those who can figure out
> how to get their own McMaster-Carr catalog???!!!
>  
> I'm told the trick is not to ask by phone, make your
> request on stationary.
>  
> Also I've noticed that if you list your parent organization,
> they say "you already got one". SO maybe you should
> emphasise your own individual department or office,
> and don't even bring up USN??
>  
> Jim
Here's a simple idea, how about trying to order something from them?  
I ordered a digital torque wrench and a couple other things and they
sent a catalog with the wrench.  Pretty cool, I wish I kept it when
I moved to my new company.  Oh well.....C'est la vie.
-- 
***********************************************************************
**  "But the whole point of a Doomsday |                             **
**   device is lost if you keep it a   |            \     /          **
**   secret!"-Dr. Strangelove          |    x________\(O)/________x  **
**----------------------------------------      o o  O(.)O  o  o     **
**  e-mail:: kbailey@emuvax.emich.edu    |                           **
**  snail-mail:: Yeah right.             |      Hornets Forever      **   
**  name:: Mr. Kenneth E. Bailey         |                           **
***********************************************************************
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Subject: GREAT LIST OF MECH ENG MILITARY TECH REPTS AVAILABLE
From: Michael Ravnitzky
Date: Wed, 09 Oct 1996 08:07:31 -0600
GREAT SOURCE OF MECHANICAL ENGINEERING RESEARCH DATA AVAILABLE:  
HERE'S HOW!
I have been studying access to Defense Department technical/research 
reports, and the release and declassification of those technical 
reports.  It turns out that there are millions of technical reports on 
every subject imaginable catalogued at the Defense Technical 
Information Center - DTIC:  many of their reports are not classified, 
but are nevertheless still not accessible to civilian researchers, 
journalists and others, except through the Freedom of Information Act 
- FOIA.
DTIC WEB SITE IS SANITIZED & WORTHLESS:  DON'T BOTHER WITH IT
DTIC does have a web site, but the indexes on that web site are
extremely misleading.  One, they only search back 10 years., and some
of the journalistic research may require additional coverage.  Second,
and more important, the web site only includes public documents that
are already available through NTIS-National Technical Information
Services.  In that regard, it's pretty worthless.  So forget the web
site and mail in your request directly.
TECHNICAL DATA ON ALMOST ANY SUBJECT:  NOT JUST DEFENSE TOPICS
Bear in mind that the Defense Department has conducted research on
literally any subject including the environment, oceanography,
biology, medicine, chemistry and physics, history, animals, psychology
and sociology, behavior, anthropology, archeology, engineering,
safety, etc. etc.  You name it, they've got it.
HOW TO GET IT
However, any person can get a complete list of these otherwise
unavailable tech reports by using the Freedom of Information Act.
Simply send a letter of request to Kelly D. Akers, Freedom of
Information Act Manager, Defense Technical Information Center, Attn:
DTIC-RSM, 8725 John J. Kingman Road, Suite 0944, Fort Belvoir, VA
22060-6128  USA.  You should not need to call, but just in case,
her phone number is 703-767-9194.
WHAT TO ASK FOR
In the letter, explain that you would like a complete
computer-generated technical report bibliography (for all computer
database years) for reports associated with the subjects and keywords
XXXXXXX or YYYYYYY or ZZZZZZZ.  Select your keywords or subjects
carefully, no more than one dozen per request.  Use the word OR
between keywords, and include parentheses *s* with keywords to
indicate plurals also.  DTIC will process your request very literally,
so pick your keywords with care.  FOR EXAMPLE, *STRESS ANALYSIS*, 
*FINITE ELEMENT ANALYSIS*, MECHANICAL ENGINEERING, ETC.
You can also request all reports by a particular author, or all
reports by a particular contractor or company.
Indicate whether you are a for-profit company, or a noncommercial
requester.  Fees are not likely to be more than a couple of dollars,
but indicate in the letter that you will be willing to pay fees up to
$20 without additional permission.  This last sentence is important;
DTIC will not process your request without a statement agreeing to pay
fees.  
It takes about 3-4 weeks to get a response.  Once you get the list of 
reports, you can select the ones of greatest interest or value and ask 
for those specific reports with another letter, if you want.
Michael Ravnitzky
MikeRav@ix.netcom.com
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Subject: Re: Your Most Often Used References
From: ajmosk@engin.umich.edu (Andrew Moskalik)
Date: Wed, 9 Oct 96 14:10:22 GMT
In Article <1996Oct8.224744@emuvax.emich.edu>, kbailey@emuvax.emich.edu (Mr.
Kenneth Bailey) wrote:
[Re: Obtaining McMaster Carr catalogues]
>Here's a simple idea, how about trying to order something from them?  
>I ordered a digital torque wrench and a couple other things and they
>sent a catalog with the wrench.  Pretty cool, I wish I kept it when
>I moved to my new company.  Oh well.....C'est la vie.
Not that simple, unfortunately.  Over a five-year span I (personally)
ordered three or four thousand dollars worth of supplies from McMaster,
using a five-to-ten year old catalogue.  Despite repeated requests *and*
subtle hints (i. e. "It would be easier to spend *more* money if I had an
*up-to-date* catalogue.") they never bothered to send me a new one or
explain why they thought I should be satisfied with my old one.  If it had
been any other company, I would have stopped buying from them.  But since
even an old McMaster catalogue is *such* a good reference...
Andrew Moskalik
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Subject: Re: Siemens motor Vibration limits
From: Michael Meyer
Date: Wed, 9 Oct 1996 13:54:18 GMT
Stephen Mitchley wrote:
> 
> Could anyone please supply me with details on the vibration limits in mm/s of
> siemens motor in the axial and radial directions. The specs are
> 
> 355kw, 50hz, 445A, 525V, 3600rpm
> 
> the serial no appears to be either :
>         1 N 133 ICI F
> or      465512/1993 MB3 ICI F
> 
> We are currently experiencing vibrations of the order
> of 2.5mm/s radially and 6mm/s axially
That appears extremely high based on a recent Siemens motor I was
involved with.  Have you contacted Siemens directly?  Siemens Industrial
Motor Division, 4620 Forest Ave., Norwood, OH 45212, (513-841-3100.
Return to Top
Subject: McMaster-Carr (was Re: Your Most Often Used References)
From: "Adam E. Ek"
Date: Wed, 09 Oct 1996 10:03:03 -0400
>I agree; this is a great catalog - but how did you get one?  I've tried
>to replace our office's now 10 year old copy for the last 5 years -
>they're always friendly on the phone and promise to send it, but nothing
>ever shows up (and we're a small enough office that I'm sure it's not
I got nothing via phone, but I did get one after sending a fax,
email, and a regular letter. In each I mentioned that the
person I was sharing a cubicle with had left to work for a
different company and had taken his McMaster-Carr catalog with
him.
Adam Ek
aeek@icd.teradyne.com
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Subject: Need help on ANSYS
From: EHWong
Date: Wed, 09 Oct 1996 10:57:11 -0700
Hi,
I would like to seek your advice on the following:
1. It is possible to assign specific kekpoint number when creating it. Can the same thing be done for line and 
area?
2. It is possible to extract the keypoint number using APDL function kp(x,y,z). Is there similar functions for 
line, area and volume?
3. The death and live function allows one to put selected elements to death to simulate their absence. Can we 
achieve the same purpose by unselecting the element before runing the solution? What are the diffenences?
Best regards
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Subject: Re: Question: How to get starting ME job
From: marcz@news.an.hp.com (Marc Zeitlin)
Date: 9 Oct 1996 14:34:05 GMT
(Hippy The Original) writes:
|> Here it goes, Just because I choose to keep my hair long does not mean
|> that I do not keep it washed and brushed. When I go for interviews or to
|> drop my resume off I dress very nice, suit and tie. Sorry to disapoint but
|> I don't go to interviews wearing unwashed jeans and a torn t-shirt. I also
|> learned how to shave when I was about 16.
Assuming that all this is the case, then I don't have a clue why you're
having such a hard time.  My hair reaches the center of my back in a
ponytail and I wear an earring.  For interviews I have always worn clean
jeans, nice shoes, a nice shirt, and a sport jacket (I despise ties). 
While I certainly have had a few people whom I could tell were put off by
my appearance, the vast majority have been much more concerned with my
GPA (at least within the first year or two out of school) and capability
(for the last 12 -13 years).  Shaving, actually, is one of my weak points
:-).
I would concentrate on presenting your accomplishments in an interview
setting.  In HP, we interview intensively and care about two main things:
the person's past performance (which is the best indicator of future
performance) and their ability to work with others.  Just out of school,
you don't have a lot of past performance, but you can concentrate on
projects you worked on, initiatives you have taken, and your ability to
get along with teams of co-workers.  Present concrete examples.  Prove to
them you can solve their problems.
|> 	Oh, well it may be time to conform. I have had professors poke fun
|> at my hair, and that is one of the reasons that I did not cut it (I am
|> funny that way ).
What you do with your appearance is dependent on how important it is to
you.  I wouldn't cut my hair even if it meant that I'd have to work for
1/2 of my present salary, but that's me.
|> ....... I believe that people should be judged on there ability,
|> not on there appearence.
In my experience, for the most part, they are.  Good luck.
-- 
 _______________________________________________________________________
/ Marc J. Zeitlin                               Email: marcz@an.hp.com  \
| Patient Monitoring Division (PMD)         HP Telnet: 1-659-3421       |
| Hewlett Packard                               Voice: 1-508-659-3421   |
| 3000 Minuteman Road                             Fax: 1-508-685-5372   |
| Andover, Ma.  01810-1099                                              |
| Mail Stop: MS-460          WWW:  http://www.ultranet.com/~marcz/      |
|_____________________             http://www-msy-me.an.hp.com/~marcz/  |
| (c) copyright 1996  \                        (HP Internal ONLY)       |
\______________________\________________________________________________/
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Subject: Re: Special solvent
From: bk@sydney.DIALix.oz.au (Bruno Karlin)
Date: 9 Oct 1996 22:56:27 +1000
Robert Perkins (bobp@netcom.com) wrote:
: I would like to drop these ear wax guards into a solution that
: will dissolve the wax.
Robert,
Try Hydrogen Peroxide.  Ear wax has a lot of suspended water in it.
-- 
Bruno Karlin, BE(Mech)  ~~~Vibration Analysis & Monitoring~~~
bk@sydney.dialix.oz.au  Busn +612 95622404  Fax +612 95622451 ()()()
 Mail: ADI Ltd, Box 4W  Garden Island, SYDNEY 2000, AUSTRALIA  ()()
  . . . my opinions, their mailbox!
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Subject: Boatbuilding Industry Home Page
From: Gary Polson
Date: Wed, 9 Oct 1996 08:51:40 -0700
Announcing a Home Page for the Boat Building
Industry
RBBI
Recreational Boat Building Industry Home Page
http://www.virtualpet.com/rbbi/
Full of technical and engineering info for
those involved in the boat building industry.
Also includes accident, patent, and legal info.
It is a huge site with everything anybody
in the boat building industry needs at
their finger tips.
Other manufacturing industries will 
also find the site useful.
Gary Polson
Polson Enterprises
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Subject: Fastener Load Distribution using FEA
From: Carl Sawyer
Date: Wed, 09 Oct 1996 11:56:21 -0700
Hello,
I have been trying to study fastener load distribution in splices and
doublers
using FEA (ANSYS in particular) with only limited success.  I can get
the
peaking effect but the numbers are off as compared with hand
calculations (Niu "Airframe Structural Design" pg 235).  Below I briefly
describe the problem and then my modeling method.  I am hoping somebody
can point out where I am going wrong.
Problem:
Consider a doubler configuration of two plates of equal thickness and
material
properties fastened together by a row of six fasteners.  One of the
plates
carries a through load (axial loaded).  I would like to study the effect
of
varying the diameter of one of the fasteners.  
Modeling:
To model the plates I have used both shell and beam elements.  Both of
these
give similar answers.  In both cases, I used a separation distance equal
to the
distance from the mid-plane of one plate to the mid-plane of the other
plate. 
The fasteners are modeled using beam elements with the diameter of the
fastener
used to calculate the required constants (area, Iyy, Izz, etc.).  When I
vary
one of the fastener diameters, I get almost no change in load transfer
for that
fastener.
Any suggestions?
Regards,
Carl Sawyer
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