http://bridge.ecn.purdue.edu/~whalen/ce573/HW.html
<>September 24) Several comments on HW #3:
Treat Problems 3.5 and 3.6 as one problem.
For Problem 4.12, assume the force acts as described in Problem 4.3,
and ignore damping.
For Problem 19.3, take 8 terms in your Fourier series.
The supplementary problem should be posted by Monday, 9/27.
<>
<>(October 14) Some modifications and suggestions for HW#4:
For Problem 4.27, use forcing interpolation to integrate numerically.
Take E = 30x10^6 psi as the Young's modulus for steel, and use I =
348 in^4. (Strictly speaking, this value of I is associated with the
weak bending axis, rather than the usual strong axis.) Integrate out
to t = 0.4 seconds.
For Problem 6.6, instead of comparing with Problem 6.2, please solve
this problem twice  once using constant acceleration and once
with linear acceleration  and compare your results. Integrate out
to t = 2.5 seconds.
For all problems involving numerical integration, please hand in a copy of
your calculations (such as the spreadsheet values from my examples) plus
a plot of the appropriate response.
The supplementary problem should be posted by Monday.
<>
<>(October 28) Please modify HW#5 as follows:
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 Fall '05
 Whalen
 2.5 seconds, 0.4 seconds, 25.18 rad, 56.98 rad

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