Optimal design of ultrasonic motor using evolution strategy and finite element method

Issue title: Proceedings of the twelfth International Symposium on Interdisciplinary Electromagnetic, Mechanic and Biomedical Problems, ISEM Bad Gastein

Article type: Research Article

Authors: Rho, Jong-Seok^{a; *} | Lee, Chang-Hwan^b | Jung, Hyun-Kyo^a

Affiliations: [a] School of Electrical Engineering, Seoul National University, Gwanak-gu, Seoul, Korea | [b] Korea Electrical Engineering and Science Research Institute, Gwanak-gu, Seoul, Korea

Correspondence: [*] Corresponding author. Tel./Fax: +81 (0) 97 554 7823; E-mail: [email protected]

Abstract: Until now, Ultrasonic Motor (USM) have been designed by using some simple analytic equations or the trial and error method. Therefore, existent design methods of the USM have the problems such as the inaccuracy and the inefficiency. For the solution of these problems, we propose the optimal design methodology of a USM by using the Evolution Strategy (ES) and the Finite Element Method (FEM). The L1B4 USM is designed optimally by using proposed optimal design methodology.

Keywords: Actuator, ES, FEM, linear motor, optimal design, piezoelectric, ultrasonic motor

DOI: 10.3233/JAE-2007-763

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 699-704, 2007