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Modal analysis of laser vibrated structures

Philp, Wayne Reginald (1993) Modal analysis of laser vibrated structures. PhD thesis, Victoria University of Technology.

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Abstract

This thesis describes the laser irradiation of metallic structures to excite mechanical vibrations within those structures. As found by other authors, single high-power laser pulses ablate the irradiated surface material and may impulsively excite structural vibration; however, the use of laser power densities above the ablation threshold causes significant surface damage. This work extends current optical excitation techniques by demonstrating that a single laser pulse, with a power density below the surface ablation threshold, can also efficiently induce flexural vibration in a structure.

Item Type: Thesis (PhD thesis)
Uncontrolled Keywords: Modal analysis, lasers in engineering, nondestructive testing, laser irradiation, optical excitation
Subjects: FOR Classification > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VU Library
Date Deposited: 12 Jul 2010 05:50
Last Modified: 23 May 2013 16:43
URI: http://vuir.vu.edu.au/id/eprint/15308
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