Full Text:   <3841>

CLC number: TM32

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 0000-00-00

Cited: 17

Clicked: 7413

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
Open peer comments

Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.1 P.58-64

http://doi.org/10.1631/jzus.A071146


Modelling of ultrasonic motor with dead-zone based on Hammerstein model structure


Author(s):  Xin-liang ZHANG, Yong-hong TAN

Affiliation(s):  Department of Automation, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China; more

Corresponding email(s):   xinliangzhang@sjtu.edu.cn, tany@gliet.edu.cn

Key Words:  Ultrasonic motor (USM), Hammerstein model, Dead-zone, Nonlinearity, Identification



Abstract: 
The ultrasonic motor (USM) possesses heavy nonlinearities which vary with driving conditions and load-dependent characteristics such as the dead-zone. In this paper, an identification method for the rotary travelling-wave type ultrasonic motor (RTWUSM) with dead-zone is proposed based on a modified hammerstein model structure. The driving voltage contributing effect on the nonlinearities of the RTWUSM was transformed to the change of dynamic parameters against the driving voltage. The dead-zone of the RTWUSM is identified based upon the above transformation. Experiment results showed good agreement between the output of the proposed model and actual measured output.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2025 Journal of Zhejiang University-SCIENCE