Development of sensorless chatter detection method in ball screw drive system applying mode decoupling

Akihiro Sugiyama, Yuki Yamada, Shuntaro Yamato, Yasuhiro Kakinuma

研究成果: Conference contribution

抄録

This paper proposes a sensorless chatter detection method for a ball screw drive system used in milling, by introducing the mechanical energy factor (MEF). The MEF is an indicator for detecting self-excited chatter, based on the power factor theory used in electric systems, and monitors the phase difference between dynamic cutting force and displacement. By monitoring the MEF, the self-excited chatter can be detected in real time with low computational load and a unique threshold, independent of the vibration amplitude. Furthermore, the MEF can be monitored without any additional sensors by applying a sensorless cutting-force estimation technique, based on the disturbance observer theory. In addition, we conducted mode decoupling to the two-inertia model of the ball screw driven stage, and derived its rigid body and vibration modes. Each mode is regarded as a one-inertia model and is independent of the other, and the MEF is monitored in the vibration mode. The validity of the proposed method was evaluated through several milling tests, and the results showed that the self-excited chatter could be detected.

本文言語English
ホスト出版物のタイトルProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3185-3190
ページ数6
ISBN(電子版)9781538611272
DOI
出版ステータスPublished - 2017 12月 15
イベント43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
継続期間: 2017 10月 292017 11月 1

出版物シリーズ

名前Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
2017-January

Other

Other43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
国/地域China
CityBeijing
Period17/10/2917/11/1

ASJC Scopus subject areas

  • 産業および生産工学
  • 制御と最適化
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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