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Mechanical Engineering

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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
Jul23-14 06:21 PM blainiac 
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
Jul23-14 04:10 PM 1pkm 
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Jan16-12 Greg Bernhardt
Dear all, I checked job numbers on indeed Canada, and when using Pro/ENGINEER and solidworks as search words, I got...
Jun12-14 09:51 AM
DrBwts
23 30,748
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
61 92,417
I have searched a lot but still unable to find any thing on modal mass of a clamped edge circular plate. It can be...
Sep24-12 10:46 AM
ruzfactor
0 616
I am a watchmaker and need some help with the formula and correct units to derive the Frequency of the Balance wheel....
Sep23-12 09:34 PM
horologist101
0 967
I'm doing a steady-state thermal analysis for a cylinder geometry. Inside the cylinder is a heat source and this...
Sep23-12 09:24 AM
Laurry
0 1,039
So I am currently using a high temperature epoxy based strain adhesive on a polyimide coated single mode fibre. This...
Sep22-12 08:51 PM
Mech_Engineer
1 597
I'm getting conflicting information on the proper form of Mohr's Circle for the stress of a system at a rotation from...
Sep22-12 06:44 PM
swampwiz
4 919
Ok I have a design project that I am working on for the University this semester. Having a bit of problems trying to...
Sep21-12 11:40 PM
zayarlinn
5 1,300
Anyone can guide me how to design gearbox on speed reducer? If I using spur gear on my design which type of spur...
Sep21-12 10:41 PM
superpaul91
2 1,339
1. The problem statement, all variables and given/known data Compound pulley with a mass (10kg) attached to outer...
Sep21-12 07:48 PM
dan38
0 779
I'm doing some work were its necessary to calculate the force acting on a drum via a wire rope. If I have a known...
Sep21-12 02:28 PM
wzrdstrm
5 1,164
hi,i'm using comsol4.3 to simulate droplet breakup in a Tjunction in the presence of a permanent magnetic field,...
Sep21-12 01:39 PM
atefeh
0 616
First of all I sincerely apologize because I know this is in the wrong section. I was unable to post in the reading...
Sep20-12 08:49 PM
sollinton
0 903
I am trying to find out how much force is being transferred into a drive chain. Here's the info as I was given: ...
Sep20-12 01:10 PM
Pkruse
2 785
http://white-smoke.wetpaint.com/page/Rotary+Engine does anyone know of this engine being used in production?
Sep20-12 04:40 AM
chhitiz
4 1,675
Hello, I am new here and don't know if this is appropriate so let me know. I am not an engineer and no formal...
Sep19-12 05:30 PM
Dynodan
0 690
Hey guys so i did a tensile test lab and got the following results from the strain gage: SecondsElapsed ...
Sep19-12 04:52 PM
Vadar2012
1 787
Hey guys! I'm brand new to the forum and looking for some advice. For full disclosure, I am actually an Economics...
Sep19-12 09:53 AM
jack action
8 1,414
Background: To prevent too much torque having to be transmitted through the gearbox on a gate valve, a shear pin is to...
Sep19-12 03:04 AM
WillemBouwer
11 6,138
Hi, new to the forum and I'm looking for some help with water flow problem. I have a geothermal heating system. ...
Sep18-12 08:46 PM
russ_watters
2 770
Ok, so here is my question In grade school we all learned that the shortest distance between two points is a...
Sep18-12 04:18 PM
aeb2335
0 769
Folks, Is there anyone out there familiar with 'An introduction to the Finite Element Method' by J.N. Reddy? I...
Sep18-12 03:28 PM
AlephZero
7 1,956
I search information about how to design and build a four axis parallel robotic arm like there is in the picture that...
Sep17-12 10:05 PM
iii
1 583
Hi, hope someone can help. I need to find the centre of gravity of a car (x,y and Z). I know the length of the car...
Sep17-12 03:16 PM
grupster2004
19 45,832
hello, i am trying to calculate thermal stress on sphere, considering chage in temperature causes chage in volume of...
Sep17-12 08:58 AM
Mech_Engineer
3 1,752
Random question for all you MEs out there, but feel free if you also have engineering courses taken in other areas...
Sep16-12 07:08 PM
Vadar2012
13 2,405
It seems that there are two kinds of FMAVs, insect-like and bird-like flapping micro air vehicle.the first one's...
Sep16-12 12:13 PM
hummingbird90
0 616
Hi all. I am working on a problem in which I want to model the collision of a moving object, with mass m1, with a...
Sep15-12 03:25 PM
AlephZero
1 983
I need a formula! Please help! Imagine a 9' long 1"IDx1.25"OD pipe. Along the length of this pipe there are a...
Sep14-12 07:12 AM
256bits
2 952
Hi! Can anyone help me out with ascertaining how to go about preparing for a course in Electronic Printing and...
Sep14-12 05:04 AM
Rhydo
0 662
hello there ... i am in the middle of stress-strain calculation..and got stuck-up at bearing/contact stresses how...
Sep14-12 03:33 AM
Studiot
5 1,671
I have a question about the typical stress tensor diagrams (shown here). What assumption is made such that ...
Sep13-12 05:43 PM
Studiot
6 1,248
Hello, I have two questions that I have been pondering for some time without arriving at an acceptable explanation....
Sep12-12 04:02 PM
KLoux
0 1,033
Hey guys, I'm simulating heat radiation in COMSOL. A rod with 2000 K temperature is placed in a room wat 293 K, I...
Sep12-12 10:14 AM
lifeforaiur
0 696
Hey. Working on a project at the moment, where i have to simulate a human arm (hand and lower arm). I need to find...
Sep12-12 06:27 AM
homedoc
5 1,438
So, in Nu=\frac{hD}{k} h is the heat transfer coefficient, and D is the diameter of the pipe in which heat...
Sep11-12 11:01 PM
Vadar2012
2 1,100
A tube can be inserted into the top of a pipe transporting liquids, providing the pressure is relatively low, so that...
Sep11-12 10:13 PM
Vadar2012
2 806
Hi Folks; As we all knew, and I used to experimentally observe it, as the temperature of water increases, pressure...
Sep11-12 07:19 PM
discreet544
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I saw the assembly of a high temperature Boiler Code application the other day. They used nickel and Chrome alloys...
Sep11-12 01:21 PM
Pkruse
2 842
While making a pattern for a casting do we increase or the bore diameter of the pattern, than actually required in the...
Sep10-12 11:55 AM
pantaz
7 1,830
Hi I am having some difficulty interpreting the the equation (please refer to the attached) for the frequency...
Sep10-12 11:42 AM
ruzfactor
0 852
Hello All, We are experimenting with a flame tube design (quite literally, a flame within a tube). We are looking...
Sep10-12 10:46 AM
gball
2 1,093

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