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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 30,921
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 92,828
Hi guys.I n moment,Im confused as to how to determine the signs that go next to the position vector.On what thing do...
May12-09 01:34 PM
Cyrus
1 1,218
Hey there, I'm a mechanical engineering student and right now we have CAD lessons. We use Pro Engineer Wildfire...
May12-09 12:01 PM
FredGarvin
13 5,334
I am trying to calculate the diameter of a drive shaft. I would have thought that all I would need in order to...
May12-09 07:29 AM
Benson
15 28,113
Trying to understand Vector Loop Mobility Criterion with respect to the Gruebler's Equation for a system with a single...
May12-09 05:14 AM
bortonj88
0 966
Hey Guys, Need some help calculating the internal stress of a water filled slug (cylindrical) being shot from a...
May11-09 10:45 PM
Adelaide_AURa
0 915
I am trying to find a thermal conductivity of a flat plate material. The problem is supplying a constant heat flux. ...
May11-09 10:40 PM
ustink007
0 1,182
Greetings everyone. My issue is this: I'm interested in finding a small electric generator that can power a...
May11-09 05:11 PM
russ_watters
16 2,473
I am a student. We are working on a design project, and long story short, we need to transmit power on the moon. We...
May11-09 12:04 PM
turbo
5 1,440
I want to model a material in COMSOL that is both anisotropic and elasto-plastic. How do I do that? In the subdomain...
May11-09 09:52 AM
FEMhamster
0 2,686
Hi all, I've been looking at a few trusses lately and was wondering what the main factors are that influence the...
May11-09 07:02 AM
TVP45
1 1,428
hey, im trying to calculate the bending moment diagram and shear force diagram of an irregular shaped beam. it looks...
May11-09 02:39 AM
milkthistle
0 3,738
Right, im in the process of designing an axial piston pump. I have obtained the following formula from a text book...
May10-09 09:34 PM
Dr.D
1 2,658
Hello, PLEASE CAN ANYBODY HELP ME!??? I am student of Mechanical engineering and I have to solve some problems...
May10-09 06:35 PM
zdeni
2 5,426
hello dear mechanicals i have a BS of mechanical engineering and i am living in a third world country,i have a...
May10-09 01:34 PM
gholamghar
3 1,286
Hello all, I am looking for some guidance on making a mechanism that will retract a 900 metre length of fishing...
May10-09 01:10 PM
Danger
8 1,892
Please can someone help me with doppler radar...need to know bandwidth?? Is it usually continuous wave or pulse?? or...
May10-09 03:31 AM
andrewr
3 2,244
Hi, I am using Sensored BLDC motors for some robotic movements. I am driving my motors using motor drivers. I am...
May9-09 05:09 PM
Dr.kW
2 3,569
ABAQUS 6.7: Part001: http://www.megaupload.com/?d=YGATEUWG Part002: http://www.megaupload.com/?d=XXW4N01A Part003:...
May8-09 10:28 PM
masubu
0 1,445
To harvest power from an abandoned gas well a binary system is used with nh3 as the prime mover for turbine What...
May7-09 01:35 PM
Lloyd Fowlie
0 603
Hello Forum , anybody has an experience with HDD motors , how can be connected to a microcontroller ? Thank you in...
May7-09 12:51 PM
Topher925
2 1,645
Can someone explain me how to put the inertial forces (tangential and centrifugal) on 6 DOF robot arm like this one...
May7-09 12:42 PM
icra
0 6,965
I'm looking to see if a flexible beam I am using right now can be flexed further, currently it goes to around 25...
May7-09 07:44 AM
minger
2 1,065
Is it reasonable to have a flow situation where you have a turbulent Prandtl Number of 1 and a turbulent Schmidt...
May6-09 08:59 PM
womfalcs3
0 3,812
In Shigley's Design there is a brief discussion in chapter 2 about strain hardening. At one point he says, Is...
May6-09 06:06 PM
Cyrus
7 2,003
I am just brainstorming here, but I am wondering about the following: Look at this picture of the payload bay doors...
May6-09 12:29 PM
mongolianbbq
4 1,227
i have to design a double reduction gear drive using a spur gear pair.Input RPM is 730 and output RPM is 85.7. s The...
May5-09 02:41 PM
minger
7 4,081
How can we vary the speed of hydraulic motors running through a constant output pump??
May5-09 01:46 PM
Topher925
1 879
I have done some design work calculations for a double pipe heat exchanger. I have the inlet and outlet temperatures...
May5-09 09:55 AM
jaap de vries
3 2,361
Hi guys, need your help on the below question: There is this parameter known as thermal diffusivity. Thermal...
May5-09 09:49 AM
jaap de vries
3 7,532
Hi I am trying to designing a robot arm but am having problems calculating the torque required to drive the main...
May4-09 05:37 PM
Edpuente
2 2,294
Hello, everyone. I have a problem in finding a suitable heat exchanger for cooling coils. I would like to cool...
May4-09 05:22 PM
Edpuente
3 3,193
can a 6stroke or a 5stroke engine be constructed? as we have always known only of 3 atroke and 4stroke engines. ...
May4-09 03:07 PM
brewnog
11 1,979
Hey guys, Just a bit stuck with getting enthalpy values off a table I have in a text book. If we look at R-22...
May4-09 02:58 PM
ank_gl
1 990
Hi Natural frequency of spring is fn = 1/(2*pi) * sqrt(k/m), where k = spring constant and m is the mass. Ok, so...
May4-09 12:20 PM
minger
1 3,283
The best I can come up with is Paris' postulation that if SIF controls static fracture then it's reasonable that it...
May4-09 09:47 AM
Mapes
1 1,357
can anyone inform me about humidifing & pressurizing the hydrogen flow in educational fuel cells (small size & powers...
May2-09 03:43 PM
octtarek
0 888
Dear Physics Gurus, o:) I am trying very hard to understanding the units used to measure torque. I know there is...
May2-09 11:47 AM
ramonegumpert
3 1,913
When looking at a brayton cycle, how do you find enthalpies when your only given temperatures? This is not a...
May2-09 11:02 AM
xxChrisxx
1 1,436
Dear Forum, I am currently trying to buy some imperial machine screws and bolts online, and I am confused with how...
May2-09 10:23 AM
temujin
4 7,456
i need to find 3D pump geomtery in solidworks, catia, or proengineer
May2-09 05:28 AM
u2thek
9 2,784

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