Vibration measurement for rotating disk using contactless laser excitation

Daisuke Miyamoto, Itsuro Kajiwara, Naoki Hosoya

研究成果: Article査読

1 被引用数 (Scopus)

抄録

This paper proposes a contactless vibration testing system for rotating disks based on an impulse response excited by a laser ablation. High power YAG pulse laser is used in this system for producing an ideal impulse force on structural surface without contact. The contactless vibration testing system is composed of a YAG laser, laser Doppler vibrometer and spectrum analyzer. This system makes it possible to measure vibration characteristics of structures under operation, such as vibration measurement of a rotating disk. The effectiveness of this system is confirmed by experimental and theoretical analyses. In this paper, a platter of hard disk drive is employed as an experimental object. Vibration characteristics of a rotating and non-rotating platter are measured and compared with the results of theoretical analysis.

本文言語English
ページ(範囲)4402-4412
ページ数11
ジャーナルNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
77
784
DOI
出版ステータスPublished - 2011
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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