An air conditioner weighs 2 kN and is driven by a motor at 400 rpm. What is the required static deflection of an undamped isolator to achieve 75% (75 percent isolation) if the damping ratio ($\delta$) is 0.5?
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Adi S.
A washing machine of mass $50 \mathrm{~kg}$ operates at $1200 \mathrm{rpm}$. Find the maximum stiffness of an isolator that provides 75 percent isolation. Assume that the damping ratio of the isolator is 7 percent.
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