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Unformatted text preview: Advanced Vibration
Ex. 4
Submit Wed. April 27, 2011 1. Determine the spring k 2 which completely absorbs
the steady state motion of mass m1 . What is the
steady state amplitude of vibration for mass m2 ? m2 = 1
k2 f = 2 sin 5t
m1 = 4 k1 = 10
10 2. Determine the spring k 2 which completely absorbs
the steady state motion of mass m1 . What is the
steady state amplitude of vibration for mass m2 ? Is it
a better absorber design than that in problem 1? c1 = 1 k3 = 9
m2 = 1 k2 = ?
m1 = 4
k1 = 10 3. Determine the spring k 2 which minimizes the steady
state amplitude of vibration of mass m1 . What is the
steady state amplitude of vibration for mass m2 ? Is it
a better absorber design than that in problems 1 and
2? f = 2 sin 5t c1 = 1 c 2 = 0 .5
m2 = 1
k2 = ? Hint: You may run a Matlab loop for an appropriate
range of k 2 and determine the stiffness that minimizes
the steady state amplitude of vibration of mass m1 . m1 = 4
k1 = 10 f = 2 sin 5t
c1 = 1 ...
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 Fall '08
 Ram,Y

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