Question: A ring type stack actuator has 3 2 PZT layers. Obtain the stiffness, free displacement, and blocked force of the stack assuming the inner radius

A ring type stack actuator has 32 PZT layers.
Obtain the stiffness, free displacement, and blocked force of the stack assuming the inner radius =6mm,outer radius =10mm, and thickness of each PZT layer =0.25mm. Applied voltage is 150 V and assume the material properties of PSI-5H4E
(Navy VI type, this is different from 5A4E, Navy II)
A ring type stack actuator has 3 2 PZT layers.

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