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In: Mechanical Engineering

For a base motion system described by: mx''+ cx'+ kx = cY?b cos ?bt + kY...

For a base motion system described by:

mx''+ cx'+ kx = cY?b cos ?bt + kY sin ?bt

with m = 100 kg, c = 50 N/m, Y = 0.03 m, and ?b = 3 rad/s, find largest value of the

stiffness k and that makes the transmissibility ratio less than 0.75.

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