The micro-mechanism of friction drive with ultrasonic wave

Koshi Adachi, Koji Kato, Yasunori Sasatani

研究成果: Article査読

45 被引用数 (Scopus)

抄録

The micro-mechanism of friction drive with ultrasonic wave was analyzed experimentally and theoretically by using a newly developed apparatus. With this apparatus, it was possible to measure the friction force at the contact interface between a rotational disk and an oscillatory pin induced by ultrasonic wave. This friction couple simulated the contact behavior of the ultrasonic wave motor. The type of pin motion (whether reciprocating or circular), its amplitude and rotational speed of disk could be controlled in this apparatus. The friction force increased with the increase of the rotational speed of disk and the decrease of the amplitude of pin motion. In the case of circular pin motion, the friction force was applied in a negative direction when the rotational speed of disk was below a critical value. The micro-mechanisms of this friction drive were analyzed theoretically by introducing a relationship between tangential coefficient and micro-displacement at the contact region, and the observed friction force as a function of the rotational speed of disk and the amplitude of pin motion was well explained by the introduced theory.

本文言語English
ページ(範囲)137-142
ページ数6
ジャーナルWEAR
194
1-2
DOI
出版ステータスPublished - 1996 6月

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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