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Mechanical Engineering

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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
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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
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
26 33,812
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
61 97,191
Does anyone know what the pressure is inside the cylinder of an internal cumbustion gasoline engine at the expansion...
Jan6-09 10:51 PM
19 5,286
Heya folks at Physics forums. I'm having a bit of a problem with the theory of maths behind a simple formula used...
Jan6-09 03:51 PM
1 3,016
Hi I want to build an upsidedown pendulum. My problem is what is the best/most used way of converting a circular...
Jan6-09 03:33 PM
4 1,978
Hi, I think I have confused myself over the COP of a refrigerator. I have refrigeration system and a certain set of...
Jan6-09 12:13 PM
0 1,764
Hello forum , i extract a spindle motor from a hard disk , it has 4 wires : black, red , green and white . picture :...
Jan6-09 10:33 AM
0 1,196
I am a high school physics student and am building an air cannon to study projectile motion for our end-of-year...
Jan6-09 07:21 AM
17 12,007
I'm ready to begin proof of concept experiments on the Mk IV Tesseract, following on the limited success of the three...
Jan5-09 10:35 PM
6 1,912
Does anyone have a solidworks sketch of this airfoil? I would like to use it for a COSMOS analysis for a lab I am...
Jan5-09 04:44 PM
2 11,784
I'm working on a protoype that uses energy from the sun (PV cells) to convert potential energy into electrical energy...
Jan5-09 04:42 PM
3 824
Hi, everyone. Again....I meet some problem in my work. My boss want to reduce the exhaust soots from a Euro 0/1...
Jan5-09 01:14 AM
Su Solberg
8 5,274
:!!) anybody knows @ design of thermostatic expansion valve used in refrigeration and air...
Jan4-09 02:59 AM
2 2,103
i am making a car and i will use hub motor on it. car+driver=150kg i want the car to reach 40 km/h in 1 min. so i...
Jan4-09 02:45 AM
3 4,618
hiiiiii guys, am graduate student, i want to know @ head loss in case of compressible fluid due to sudden...
Jan3-09 08:42 PM
2 4,962
guys, i'm new here. please forgive if i'm a bit clumsy or act like a fool. i was wondering how do you connect two...
Jan3-09 01:52 PM
beedle bard
8 1,480
Hi I want't your help to learn about chain selection I have an electric motor of 11 kw and a gearbox I want to find a...
Jan3-09 11:32 AM
Su Solberg
2 1,230 It looks like IIT is broadcasting a ton of Engineering (mostly...
Jan3-09 01:09 AM
9 93,740
Hello! I chose an aspect of a dynamical system exhibiting resonance to model. The focus of the project is on the...
Jan2-09 03:08 PM
1 3,040
Hi, everyone Since specific Volume is 1/density, How come this web can provide a decreasing Specific Volume of Air...
Jan2-09 01:38 PM
2 9,711
What would happen if the drilling table (Workpiece mount) is rotated in the opposite side of the tool rotation...
Jan1-09 07:24 PM
5 2,160
Hi, I cant figure out how to calculate forces exerted by a leaf spring. The spring is made out of an 0.3mm sheet...
Dec31-08 11:06 PM
8 5,581
Hello! i have a project at college in which we have to manufacture a differential. We have decided to eliminate...
Dec30-08 12:04 PM
1 1,314
Hi all, I want to know the details of the pumps such as Which of the pump has the highest head? Which one has the...
Dec28-08 10:11 AM
4 1,687
Help! I trying to improve momentum eq for cylindrical element coordinate by using vector method or may other...
Dec28-08 12:47 AM
1 1,434
i have attached a .gif of a simple design i made for a stirling engine...i dunno if it would work or not, that is,...
Dec27-08 11:48 AM
4 9,315
I have been trying to find some information or study concerning a widely held idea concerning attic ventilation. ...
Dec26-08 09:07 PM
8 6,730
Anyone know how to do it? I do not know where to find dee electromagnets, nor do I even have the complete design of...
Dec24-08 11:36 AM
1 1,265
For an industrial parallel axis gearbox with a transmission ratio 10:1, what is the reasoning behind the use of 2...
Dec23-08 02:33 PM
3 1,825
Dear all Is the torsional spring will exert any axial force while rotating certain degrees? (Spring geometry looks...
Dec23-08 04:01 AM
0 1,650
The auto industry will be using this method to contol inlet and exhuast valves, i think 6000 rpm is the limit so far...
Dec22-08 02:53 AM
7 9,407
Hello I need a method of locking a freewheel cog at the back wheel of a bicycle. Have motorized bicycle. It has a...
Dec21-08 03:31 PM
0 1,319
Hello All, I am currently trying to optimize a steam power plant cycle and I am stuck... What I am unable...
Dec21-08 01:18 PM
0 5,001
I experimented column buckling analysis with different two load conditions in MSC.Nastran. In the first condition,...
Dec21-08 11:33 AM
12 5,672
Hello, I would like help with analyzing the car engine for a deeper understanding. This is what I cant understand...
Dec21-08 08:29 AM
1 1,320
What is the purpose of teeth in such jack ? Isn't the screw enough to provide the lift ? What will happen if these...
Dec20-08 06:44 PM
6 6,537
Hello, I know that something around 65% of the potential energy stored in fuel is lossed in an engine through...
Dec20-08 03:05 PM
8 15,418
Hi, Just wondering if anyone could tell me how I would go about plotting the parabolic curve for the equation: ...
Dec19-08 09:30 PM
3 8,401
Guys, In most books, why is it that triangles doesn't have moment inertia along the y-axis as well as the...
Dec19-08 07:21 AM
1 6,754
I'm at little rusty on my heat transfer and could use some help. I'm trying to calculate the approximate time to...
Dec18-08 03:15 PM
13 7,432
can some plz help me derive the following equation for otto cycle.(refer to attachment)
Dec18-08 08:23 AM
0 3,246
I am wanting to build an engine inertia dyno. Finding someone capable of machining and balancing a large diameter...
Dec18-08 03:46 AM
7 2,549

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