Question

An air compressor of mass 50 kg operates at 1200 rpm. Assuming that the damping ratio of the shock isolator is 0.1 and providing that 75 percent vibration isolation to the base;

i) Determine the static deflection produced by the isolator

(ii) If a shock isolator of the compressor is replaced with an isolator consisting of a similar spring stiffness with negligible damping, compare the force transmitted to the base before and after the isolator replacement by assuming that compressor produces 50 N force. Justify your answer with a graph explanation.

Answer 1

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