Abstract
For a novel inertial piezoelectric rotary motor, the equation of the strain energy in the piezoceramic bimorph and the equations of the strain energy and the kinetic energy in the rotor are given. Based on them, the dynamic equation of the motor is obtained. Using these equations, the inertial driving torque of the motor is investigated. The results show that the impulsive driving torque changes with changing peak voltage of the excitation signal, the piezoelectric stress constant, the thickness of the piezoceramic bimorph, and the rotor radius obviously. Tests about the motor torque are completed which verifies the theory analysis here in. The results can be used to design the operating performance of the motor.
Highlights
Piezoelectric motors maintain relatively high torque at relatively low speeds, without a reduction gear [1, 2]
Among all of the piezoelectric motors, inertial drive principle has the advantage of simpler requirements to the construction and driving circuitry [3]
One type of the inertial motors is based on the impact drive mechanism from impulse inertial force [4]
Summary
Piezoelectric motors maintain relatively high torque at relatively low speeds, without a reduction gear [1, 2]. The micromanipulator for cell manipulation and auxiliary positioning system for STM and AFM were developed [5, 6] Another type of the inertial motors is based on the smooth impact drive mechanism. The motor has simple design and consists of the slider with a bimorph piezoceramic disc and the clamped cylindrical shaft used for sliding [13]. These motors belong to the linear inertial piezoelectric motors and the inertial piezoelectric rotary motor was seldom reported. The dynamic equation of the motor is obtained Using these equations, the inertial driving torque of the motor is investigated. The results are useful for design and control of the operating performance of the motor
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
