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PhysicsForums Hollow Tubes and Torque  
00:20 22-May-07   [Replies: 2, Views: 124]    By: Unnamed
Hi there, can someone pls tell me how the internal diameter of a hollow shaft affects the maximum torque that can be transmitted pls....
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PhysicsForums Dimensional Analysis & Buckingham Pi Theory  
22:04 21-May-07   [Replies: 11, Views: 252]    By: Unnamed
What can "Dimensional Analysis Techniques & Buckingham Pi Theory" be used for? GS...
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PhysicsForums A little fluid statics question..  
00:19 21-May-07   [Replies: 1, Views: 141]    By: Unnamed
http://i163.photobucket.com/albums/t...photos/4-1.jpg [http://i163.photobucket.com/albums/t282/Calc_photos/4-1.jpg]> When finding the force required to hold the dish in place, do I have to take acc...
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PhysicsForums Dynamics  
00:17 21-May-07   [Replies: 1, Views: 108]    By: Unnamed
Hey, I got a final coming up and I need to check this question since it's been killing me. I got an answer of 4.5 rad/s Any one mind verifying for me. any help is appreciated thank you...
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PhysicsForums sun sensor  
19:27 20-May-07   [Replies: 5, Views: 155]    By: Unnamed
Hi, Will a sun sensor work if the satellite is in the Earth's shadow? thanks!...
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PhysicsForums Why isn't there shock wave in this case !  
00:22 20-May-07   [Replies: 6, Views: 347]    By: Unnamed
Hi everybody ! I have used FLUENT to do the following simulation ( it's 1.5 cm, not 1,5) http://upload.tinhco.net/thoai/debai.jpg [http://upload.tinhco.net/thoai/debai.jpg]> I set 500 for &qu...
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PhysicsForums pressure inside an ic engine  
00:08 20-May-07   [Replies: 17, Views: 639]    By: Unnamed
Could some one tell me if there is any method to find out the instant pressure inside the combustion chamber of the internal combustion engine. I plan to change the way engines work if the pressure ca...
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PhysicsForums DC motor selection for REALLY low speeds  
00:27 19-May-07   [Replies: 10, Views: 433]    By: Unnamed
Hi everyone. I'm in the process of designing a telescope mount, and am now trying to figure out how to drive the thing. Ideally I would like to go with an off the shelf dc motor and gearhead setup...
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PhysicsForums Formula for a Body of Resolution  
00:27 19-May-07   [Replies: 0, Views: 71]    By: Unnamed
I am not a math whiz, but I need a formula similiar to a parabolic curve to design a shape similiar to an aircraft wing tank in 2D. I have found two body of resolution formulas in the old NACA files,...
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PhysicsForums mean aerodynamic center  
00:26 18-May-07   [Replies: 3, Views: 188]    By: Unnamed
i would like to calculate the mean aerodynamic center of a delta wing. how do i do that?...
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PhysicsForums Hypersonic Aircraft Design Project  
00:02 18-May-07   [Replies: 1, Views: 127]    By: Unnamed
Those in Aerospace Engineering might find this report useful in terms of walking through some of the design aspects of an aircraft. http://ntrs.nasa.gov/archive/nasa/ca...1989009038.pdf [http://ntr...
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PhysicsForums Tensile Strength of 4" square RV Bumper  
00:26 17-May-07   [Replies: 1, Views: 118]    By: Unnamed
I'm building a Class II style hitch for mounting on a 4" square RV Bumper. The RV bumper wall thickness is around .090 thousands. The bumper is welded perpendicular to a couple box frames on 60&q...
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PhysicsForums aluminum sheets and extrusions  
00:19 17-May-07   [Replies: 2, Views: 82]    By: Unnamed
I have noticed that the mechanical properties of aluminum vary depending on if it is provided as sheets or extrusion. Do you know why?...
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PhysicsForums Spanwise load distribution due to change in twist!  
00:16 17-May-07   [Replies: 0, Views: 57]    By: Unnamed
Hello, I am doing research on the Spanwise load distribution due to change in wing twist! and also: the Spanwise load distribution due to change aileron deflection... Any one working o...
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PhysicsForums Gust Load Alleviation and Flutter Supression?  
00:14 17-May-07   [Replies: 0, Views: 40]    By: Unnamed
Hello all, I was just wondering if there are any one amongst you who has worked/dealt with Gust Load Alleviation fro aircraft wings ....also any work on active Flutter Supression? Hope to hear f...
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PhysicsForums Windf Tunnel testing?  
06:37 16-May-07   [Replies: 3, Views: 229]    By: Unnamed
Hello, Is there people amongst you who have ever dealt with Wind Tunnel testing? I cannot find a special section for experiments in this forum... I have a few topic to launch! Thanks......
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PhysicsForums my air conditioning doesn't cold  
17:29 14-May-07   [Replies: 2, Views: 153]    By: Unnamed
Hello everybody!!! i have a dodge neon 97 and i want to know how much pressure (PSI) receive the charge suction of the air conditioner compressor system???????? because i wan't to put the gas refriger...
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PhysicsForums auto air conditioner system  
22:43 12-May-07   [Replies: 0, Views: 32]    By: Unnamed
i have a dodge neon 97 and i need to know how much psi use the air conditioner system...
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PhysicsForums Need some help with GD&T  
22:38 12-May-07   [Replies: 7, Views: 199]    By: Unnamed
Now that I've completed my first CAE course I'm attempting to design a part (to actually have built) using solidworks. I'm want to build this part to mil spec, problem is mil specs are given in GD&am...
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PhysicsForums Stress Strain Graphs  
01:36 12-May-07   [Replies: 6, Views: 282]    By: Unnamed
Just a question. The internet is mixed with this. But in a Stress Strain Graph; after the YIELD POINT, does the material experience more strain for a lesser stress? I.e. does it slightly curve down be...
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PhysicsForums Proper mechanical drawing.  
00:17 12-May-07   [Replies: 11, Views: 264]    By: Unnamed
Hey, I'm studying mechanical engineering and my opinion is that the emphasis on drawing is too low. Could someone recommend me a book or other material so I can learn to draw proper mechanical drawi...
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PhysicsForums How can you calculate density from : altitude temperature and absolute..  
03:04 11-May-07   [Replies: 3, Views: 135]    By: Unnamed
How can you calculate density from : altitude temperature and absolute humidity...
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PhysicsForums Any such thing as "small steam turbine"?  
03:04 11-May-07   [Replies: 1, Views: 134]    By: Unnamed
I've a C-Band satellite dish. I'm going to attach 2" mirrors to the entire reflecting surface and aim it at the sun. Where the feedhorn was, I'm going to design some type of coil to pump water th...
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PhysicsForums What type of flow is this?!  
03:04 11-May-07   [Replies: 1, Views: 158]    By: Unnamed
Hi, I'm unsure as to what type of flow this is: Stream Function: psi = -ln(r) + theta Potential Function: phi = theta + ln(r) For some reason, I don't think I'm plotting the flow correctly. ...
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PhysicsForums Revision on Past Exam Paper !!  
03:04 11-May-07   [Replies: 3, Views: 100]    By: Unnamed
Hey there, i am stuck on this question in my past exam paper, and i have tried many ways of doing it but just simply not getting any where !! So please would u mind helping me out a little here !!?? ...
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