Optimum design of dynamic absorber for pattern formation phenomena generated in contact rotating systems (2nd report, experimental verification of single-degree-of-freedom viscoelastic model)

Nobuyuki Sowa, Takahiro Kondou

研究成果: Contribution to journalArticle査読

抄録

The dominant mechanism involved in pattern formation phenomena in contact rotating systems is considered to be unstable vibrations generated in linear time-delay systems due to processes such as viscoelastic deformation, wear, cutting and grinding. A number of countermeasures have been proposed to prevent the occurrence of these phenomena. In a previous study, stabilization of the system using a dynamic absorber was suggested as an effective preventative measure, and the validity of this approach was confirmed by numerical analysis using a newly developed stability analysis method based on the existence condition of boundaries between stable and unstable regions. This analysis method can be carried out efficiently and accurately without the need to obtain characteristic roots. In this report, an experimental viscoelastic system was constructed in order to verify the effectiveness of a dynamic absorber and determine its optimum design using the new stability analysis method. The results for a single-degree-of-freedom system indicate that such a dynamic absorber is an effective means of preventing pattern formation phenomena from occurring.

本文言語英語
ページ(範囲)2181-2192
ページ数12
ジャーナルNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
77
778
DOI
出版ステータス出版済み - 2011

All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 産業および生産工学

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