Characteristic evaluation of electro/ mechanical resonance for linear oscillatory actuator considering reverse current phenomenon

Issue title: Special Issue on the 18th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering

Guest editors: Sławomir Wiak, Paolo Di Barba and Krzysztof Komeza

Article type: Research Article

Authors: Kato, Masayuki^* | Hirata, Katsuhiro

Affiliations: Deparment of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Yamadaoka, Suita, Osaka, Japan

Correspondence: [*] Corresponding author: Masayuki Kato, Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan. E-mail: masayuki.kato@ams.eng.osaka-u.ac.jp.

Abstract: Authors have proposed an electro/mechanical resonance method to improve characteristics of a linear resonant actuator. However, a reverse current caused by high capacitor voltage was not considered in the finite element analysis. In this paper, we evaluate dynamic characteristics through a modified analysis method in which a reverse current is considered and the validity is confirmed by comparing with measured results.

Keywords: Linear oscillatory actuators, reverse current, electrical resonance, mechanical resonance, linear resonant actuators, finite element method, electromagnetic actuators

DOI: 10.3233/JAE-182306

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 57, no. S1, pp. 155-163, 2018