Question

A piezoelectric stack with a short-circuit stiffness of 5 N/μm is driving a load with a mass of 500 grams and a stiffness of 3.5 N/μm. The free displacement of the stack at 100 V is 40 μm. Plot and label the frequency response of the stack displacement per unit voltage over the frequency range 1 to 10,000 Hz.

Answer 1