Micro stick-slip vibration in hydraulic servo systems

Toshiyuki Hayase, Satoru Hayashi, Kazunori Kojima

研究成果: Article査読

抄録

This report treats micro stick-slip vibrations occurring in a typical computer-controlled hydraulic servo system. The relevant system consists of a hydraulic cylinder, a servo valve and a personal computer. First, an experiment was performed for a conventional feedback control system to confirm the occurrence of two different types of stick-slip vibration of small amplitude. Detailed numerical analysis was then performed to identify the main factors contributing to the vibrations. The control signal generated by the D/A converter causes micro stick-slip vibration of small amplitude over a wide range of control feedback gain. Increasing the feedback gain results in another type of micro stick-slip vibration of large amplitude due to the locally increased flow gain within the underlap of the servo valve. Computational results agree well with the experimental ones.

本文言語English
ページ(範囲)444-450
ページ数7
ジャーナルNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
63
606
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 産業および生産工学

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