Arotating machine of mass m 100 kg is supported on four elastic mounts with a total stiffness of k 200, 000 n/m and damping constant of c 500 ns/m. the machine rotates at a speed of 6000 rpm and has an eccentric mass m 0.005 kg located at a distance of e 0.1 m from the axis of rotation. determine the amplitude of vibration of the machine. also determine the phase of vibration relative to the harmonic excitation.

What precautions should you take to prevent injuries when dealing with heavy loads?

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

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