title: A New Linear Oscillatory Actuator with Variable Characteristics Using Two Sets of Coils.
abstract: Nowadays, electromagnetic linear oscillatory actuators are used as vibration control devices because of their high controllability. However, there is a problem that thrust and vibration are small at a wide drive frequency range. In order to improve this problem, we propose a new linear oscillatory actuator that can easily change its own characteristics by using two sets of coils. Through finite element analysis, large vibration was observed at 100 Hz in a series connection, and large vibration and high thrust were observed at 70 Hz and 140 Hz in a parallel connection. From these results, we verified that the actuator had two different characteristics due to switchable connections, and could generate high thrust and large vibration by smaller currents at a wide drive frequency range.
authors.affiliation: Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan. fumiya.kitayama@ams.eng.osaka-u.ac.jp.
authors.forename: Fumiya
authors.initials: F
authors.lastname: Kitayama
authors.affiliation: Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan. k-hirata@ams.eng.osaka-u.ac.jp.
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Hirata
authors.affiliation: Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan. noboru.niguchi@ams.eng.osaka-u.ac.jp.
authors.forename: Noboru
authors.initials: N
authors.lastname: Niguchi
authors.affiliation: Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan. masashi.kobayashi@ams.eng.osaka-u.ac.jp.
authors.forename: Masashi
authors.initials: M
authors.lastname: Kobayashi
keywords: finite element analysis; linear oscillatory actuator; variable characteristics