AV_Ex4

AV_Ex4 - Advanced Vibration Ex. 4 Submit Wed. April 27,...

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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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