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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
Y 06:14 PM AlephZero 
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
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Jan16-12 Greg Bernhardt
Hi everyone, Maybe this resource is new for someone. It's a collection of videos made in the 60's by the very best...
Mar6-13 10:50 AM
FeynmanIsCool
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Dear all, I checked job numbers on indeed Canada, and when using Pro/ENGINEER and solidworks as search words, I got...
Aug4-14 01:56 PM
buell23
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I am not an engineer in the sense that I have been educated in or work in that field. Just wanted to get that out of...
Dec12-09 10:23 PM
Danger
8 2,740
im giving a problem where i have to find the angle a projectile situated at the top of a will hit an boat wit constant...
Sep23-06 06:42 PM
Astronuc
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i work at a company that outsources Hermetic Sealing. i was wondering if anyone knows of any vendors that would be...
Nov10-11 01:03 AM
Mike_In_Plano
1 986
You are called into the office of Wernher von Braun on a fine summer day in 1940. He tells you he has been working...
Nov27-04 08:45 PM
Janitor
10 5,035
For the equation: contact stress = {(1 / (pi for concave shapes in contact with convex shapes Sum (1/pi)...
Dec1-10 02:37 PM
vdash103
2 2,390
HI All: Using Hertz contact formula I calculated contact stress for cylinder in contact with cylinderical socket...
Sep25-07 07:23 AM
PerennialII
4 21,857
Hi all, I am designing a set of side guide rollers for a vertical gate. There are four rollers on the gate (two on...
Dec7-10 06:53 AM
lin99
4 7,412
Hello guys! Is there anyone who knows where i can find information about maximum allowed Hertzian contact...
Apr29-09 09:29 AM
Ian06
9 6,417
I have calculated a static contact stress of 670 N/mm2 using formula from Mechanical Engineering Design, Shigley, 5th...
Jan27-12 11:02 AM
Walker59
3 2,879
Can anyone say me the possibility of calculating hertzian stress of a hollow cylinder rested on a flat plate. Though...
Feb13-11 09:40 AM
bhaazee
0 1,001
on a smaller electric motor the motor output shaft is cylindrical with a hex head insert i am just directly...
Jan12-06 04:15 PM
FredGarvin
6 2,193
Hi all just a simple question about the hole of the Allen head screw becoming round/circular after repeated use of a...
Jun2-11 11:12 AM
DickL
2 1,501
Hi everyone! Can you explain me Why always hex mesh is preffered instead of tet mesh if hex mesh is possible in...
Sep24-08 09:15 AM
minger
6 7,724
Figured this forum was as good as any for making a formal introduction since I'm a mechanical engineer with some...
Sep17-03 11:22 AM
enigma
3 2,190
We are having the tires with internal dia of 12inches and disc of 190mm Can someone suggest me the caliper we can...
Jun25-14 01:24 AM
Lok
1 844
my uncle has been watching the videos on youtube with all of the people who supposedly gained gas mileage by...
Mar15-10 10:23 AM
Buckleymanor
10 1,872
Hi , i need books, sites.... about Mindlin's Theory for thin plate (Vibrations). Thanks pmcr
Jun15-12 09:18 PM
Bobbywhy
1 848
first timer here and non english spoken so I might get few mistakes but but... Question is about static equilibrium...
Oct5-09 10:09 PM
nvn
19 3,493
Hi all, Im having a bit of trouble understanding the concept of viscosity in the scenario of a fluid between two...
Nov19-12 10:24 PM
Chestermiller
1 864
I want to know efficiency of a tractor mounted equipment. my input is only this-- tractor is a diesel engine...
Sep20-09 10:05 AM
russ_watters
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Hi guys ,I have to give a presentation on UAV's ,i have some experience with RC planes but that's about it .Now...
Jul29-11 05:10 AM
Mechaniac
2 655
Hi Guys I have a query regarding circlips. If I understand correctly circlips are to be installed in grooves of...
Mar24-12 03:18 PM
RKD89
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My name is Scott Mitchel and currently im a freshmen in college. So far ive only taken in Intro to Engineering but I...
Mar19-08 12:53 PM
berkeman
3 949
Hi. I had Kamal's model used for simulating frontal car impact. This model is represented by three masses and seven...
Aug23-09 12:42 PM
Dodey khattab
0 835
Hi..can u please tell me the meaning of Idling of an engine...?
Apr15-11 02:36 AM
Studiot
1 908
Hey guys I'm looking through my Mechanics of Materials book (Hibbeler 8th ed.) and am quite confused at the section on...
Mar24-11 05:57 PM
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Hi All - I'm seeking some advice from any experimentalist types. I'm working on a project analyzing heat transfer...
Oct9-11 07:30 PM
gts
15 3,093
hi guyz, I have Turbiine(5500RPM)-Gearbox(output 1500RM)-Generator-Exciter-Permanent Magnetiic Generator(PMG). I...
Feb7-10 08:09 PM
floyds
11 3,434
I'm working on a project which has two rotating metal arms. These arms need to move in very consistent ways (that is,...
Mar23-14 01:09 PM
AlephZero
3 475
I have a intake manifold temperature that is way to high (105 by mid day normally 90) that is killing me.I have...
Feb28-08 11:40 AM
brewnog
11 7,769
Hello, I am trying to find a bearing that will allow a shaft to pass into a loop with 50bar of pressure. The basic...
Mar10-12 09:07 AM
Q_Goest
5 3,547
Hi, I'm doing a design which requires a face seal with internal gas pressure of 3000 psig. An elastomer face seal at...
Jul29-14 02:44 AM
Chronos
3 573
Hello. if i decided to build a compressed air engine based on rotary vane pump, it would have to withstand very high...
Sep21-09 04:12 PM
kandelabr
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Hello, we have been using high precision angular contact ball bearings to support a shaft with diameter of 1". At...
Jul1-14 09:10 PM
AlephZero
10 2,441
Hi All, I need a actuation system which will rotate the 80mmx100mmx4mm plate from 0-45 degrees, pivot point @ one...
Feb8-09 05:13 AM
Prasannak
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I'm looking for a electric motor that works at speeds higher then 10000RPM and 0.2 N*m. Which companies manufacture...
Jul31-10 05:28 PM
Curl
4 6,064
Ok, so I feel really stupid asking this question, but I guess you've gotta start somewhere to reach somewhere, so here...
May18-05 03:21 PM
Francis M
3 1,514
hye everyone...I wish to ask help from all of you make suggestions to me to choose number of pole-slot that suitable...
Oct29-13 04:29 PM
Baluncore
3 642
Hi, can anyone please tell me any good book on the subject, even any research paper will do, we are actually doing...
May10-06 07:10 AM
himanshu121
3 5,659
well, if i recall correctly, i read that india can't have high speed trains as the rails can't withstand the pressure...
Jan3-10 06:14 AM
chhitiz
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