Answer to Question #239623 in Mechanical Engineering for Joe melwin Raja

Question #239623
a machine of mass 100 kg is supported on openings of total stiffness 800 kn/m and has a rotating unbalanced element which results in a disturbing force of 400 n at a speed of 3000 r.p.m. assum-ing the damping ratio as 0.25, determine : 1. the amplitude of vibrations due to unbalance ; and 2. the transmitted force.
1
Expert's answer
2021-09-21T02:06:40-0400


We know that angular speed or natural circular frequency of free vibrations;


For the amplitude;







Amplitude of the forced vibration;





[0.044mm; 35.2 N]


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