Rotary piezoelectric motor using a rectangular vibrator of four actuators

Hsuan-Jung Chen; Yu-Hsiang Hsu; Chih-Kung Lee

doi:10.1117/12.2658219

28 April 2023 Rotary piezoelectric motor using a rectangular vibrator of four actuators

Hsuan-Jung Chen, Yu-Hsiang Hsu, Chih-Kung Lee

Proceedings Volume 12483, Active and Passive Smart Structures and Integrated Systems XVII; 124831L (2023) https://doi.org/10.1117/12.2658219
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Conference Poster

Abstract

Piezoelectric rotary motors have become the standard motor for rotational motorization. However, due to its complex structure and operational mechanism, its cost is considerably high. To reduce the complexity and cost of piezoelectric rotary motors, we developed a new type of motor driven by traveling waves. It is constructed of a rectangular stainlesssteel plate and four piezoelectric actuators. To generate a rotational traveling wave on a rectangular plate, two higherorder bending modes are stimulated to generate rotational traveling waves propagating in a diamond-shaped trajectory. The dimension of the stainless-steel plate and four piezoelectric PZT plates attached to its surface. The boundary conditions are chosen to be simply supported in the x-direction and free-edge in the y-direction, and an analytical model is derived for analyzing its vibration profile. To stimulate the rotational traveling waves, the Φ34 and Φ43 bending modes are chosen. The dimension of the stainless-steel plate was designed, and the resonant frequencies are close to each other at 2.733kHz and 2.781kHz. Using this design, both bending modes are simultaneously excited with a single driving frequency at 2.757kHz. The combined Φ34 and Φ43 bending modes became a steady rotary traveling wave, and it can be used to drive a rotary starter. It is also found that the vibration performance could be optimized by modulating the phase difference and voltage ratio between the Φ34 and Φ43 bending modes. Finally, the driving method of this piezoelectric rotary motor is experimentally verified and compared with the analytical model.

Citation Download Citation

Hsuan-Jung Chen, Yu-Hsiang Hsu, and Chih-Kung Lee "Rotary piezoelectric motor using a rectangular vibrator of four actuators", Proc. SPIE 12483, Active and Passive Smart Structures and Integrated Systems XVII, 124831L (28 April 2023); https://doi.org/10.1117/12.2658219

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available