Comparative Finite Element Analysis of a Voice Coil Actuator and a Hybrid Reluctance Actuator

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/03/01

タイトル(英語): Comparative Finite Element Analysis of a Voice Coil Actuator and a Hybrid Reluctance Actuator

著者名: Francesco Cigarini (Christian Doppler Laboratory for Precision Engineering for Automated In-Line Metrology, Automation and Control Institute (ACIN), TU Wien), Shingo Ito (Christian Doppler Laboratory for Precision Engineering for Automated In-Line Metrolo

著者名(英語): Francesco Cigarini (Christian Doppler Laboratory for Precision Engineering for Automated In-Line Metrology, Automation and Control Institute (ACIN), TU Wien), Shingo Ito (Christian Doppler Laboratory for Precision Engineering for Automated In-Line Metrology, Automation and Control Institute (ACIN), TU Wien), Stefan Troppmair (Automation and Control Institute (ACIN), TU Wien), Georg Schitter (Christian Doppler Laboratory for Precision Engineering for Automated In-Line Metrology, Automation and Control Institute (ACIN), TU Wien)

キーワード: electromagnetic actuators，high-precision motion，finite element analysis

要約(英語): This paper evaluates the performance of a hybrid reluctance actuator for application in high-precision motion systems. For this purpose, its properties are compared with those of a voice coil actuator, which is the choice actuator for many high-precision applications. To properly investigate the non-linearities of these systems, finite element analysis (FEA) is employed. Spacial-domain analysis shows that the hybrid reluctance actuator can deliver both higher forces per volume (by a factor up to app. 10.5) and thrust constant (by a factor up to app. 9.6) than the voice coil actuator. However, these values depend strongly on the position of the mover, causing a high non-linear stiffness. Frequency-domain analysis yields the power losses of the actuators, as well as the dynamic thrust constant. It is shown that at all frequencies the hybrid reluctance actuator suffers from higher iron loss (by a factor up to app. 5.1) than the voice coil actuator. Additionally, its thrust constant shows a large magnitude slope (app. -14.4dB/dec) and phase lag (app. -71° at f=10kHz) in the frequency domain, resulting in a narrowed control bandwidth. These results clearly indicate a trade-off between thrust constant, linearity and dynamic behavior, which should be considered for employment in high-precision applications.

本誌: IEEJ Journal of Industry Applications Vol.8 No.2 （2019） Special Issue Ⅰ on “Motion Control and its Related Technologies”　Special Issue Ⅱ on “IPEC-Niigata 2018”

本誌掲載ページ: 192-199 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/2/8_192/_article/-char/ja/