Homework Statement
http://www.imageupload.org/thumb/thumb_62195.jpg
Homework Equations
KQ = PKGQ
where K = stiffness matrix,
Q = displacement vector,
P = buckling load,
KG = geometric stiffness matrix
det(K-PKG)=0
The Attempt at a Solution
Elements 1 (A-B), 2 (B-C) and 3 (vertical) each...
I'm trying to plot the pressure distribution around a cylinder in a uniform flow field, so that the graphic is a circle with the pressure curve around it, like in the image below.
http://img843.imageshack.us/img843/4649/63792687.th.jpg
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I have the equation for...
That's right so far. With your first question, they might want you to rearrange your complex poles. To do that, you'd just expand (s+7+j5)*(s+7-j5). Otherwise, you'd be correct in using those as part of your denominator to have it as (s+3)*(s+6)*(s+7+j5)*(s+7-j5)
How do you know that that's...
Homework Statement
I need to find the values of thickness (t), mean diameter (D) and mean length (L) that will give the minimum area for the streamlined section, given that it's moment of inertia is 5.42 in^4.
Homework Equations
(the I's and A's after all K's here are meant to be subscripts...
I'm having a little trouble using the Latex thing so I've only used it for some of the equations.
Homework Statement
Elevation control of a tracking antenna.
Equation of motion for the system J\theta^{..}+B\theta^{.} = Tc+w ... Equation 1 (those dots are meant to be above the thetas, but I...