Vibration measurement and monitoring of a rotating disk using contactless laser excitation

Itsuro Kajiwara, Naoki Hosoya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationNonlinear Estimation and Control; Optimization and Optimal Control; Piezoelectric Actuation and Nanoscale Control; Robotics and Manipulators; Sensing;
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9780791856147
DOIs
Publication statusPublished - 2013 Jan 1
EventASME 2013 Dynamic Systems and Control Conference, DSCC 2013 - Palo Alto, CA, United States
Duration: 2013 Oct 212013 Oct 23

Publication series

NameASME 2013 Dynamic Systems and Control Conference, DSCC 2013
Volume3

Conference

ConferenceASME 2013 Dynamic Systems and Control Conference, DSCC 2013
CountryUnited States
CityPalo Alto, CA
Period13/10/2113/10/23

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Kajiwara, I., & Hosoya, N. (2013). Vibration measurement and monitoring of a rotating disk using contactless laser excitation. In Nonlinear Estimation and Control; Optimization and Optimal Control; Piezoelectric Actuation and Nanoscale Control; Robotics and Manipulators; Sensing; [V003T40A001] (ASME 2013 Dynamic Systems and Control Conference, DSCC 2013; Vol. 3). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DSCC2013-3772