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A variable speed compressor operates between 400 and 600 rpm. The compressor has a mass of 450 kg and is mounted on springs having stiffness of 2000 kN/m. a.) Determine

the maximum unbalance (me) allowed if the maximum allowable displacement within the operating speed range is 0.5 mm assuming no damping. b.) Repeat part a, if damping is added with c=2000 N*s/m.

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