Transient analysis of bar-type ultrasonic motors

Yosuke Nakagawa, Akira Saito, Takashi Maeno

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In this paper, analysis of the dynamics of the ultrasonic motors is introduced. Though static characteristics have in the past been clarified, the dynamic characteristics were still unclear. For the purpose of realizing high speed control of ultrasonic motors, we analyzed the dynamic characteristics through measurement and numerical simulation. Among the different types of ultrasonic motors, we focused on bar-type ultrasonic motors and first measured the step response using a laser doppler velocimeter (LDV). We measured changing the input parameters and showed the relationship between input parameters and delay, overshoot of the rotational speed of the rotor. Next, we established a mathematical model of the bar-type ultrasonic motor. In our model, we approximated the stator as a rigid disc and torsional spring. We set the discrete spring at the contact area between rotor and stator, and simulated considering stick-slip at the contact area. The results of numerical simulation matched that of the measurements qualitatively and we clarified the dynamics of the contact condition and friction force at the contact area.

本文言語English
ホスト出版物のタイトル2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
ページ1263-1268
ページ数6
出版ステータスPublished - 2004 12 1
イベント2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) - Sendai, Japan
継続期間: 2004 9 282004 10 2

出版物シリーズ

名前2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
2

Other

Other2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
CountryJapan
CitySendai
Period04/9/2804/10/2

ASJC Scopus subject areas

  • Engineering(all)

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