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14 December 1988 Study Of Brake Squeal Problem By Pulsed Holographic Interferometry
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Proceedings Volume 0955, Industrial Laser Interferometry II; (1988)
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States
Holographic pulsed interferometry was applied in this investigation to studies of an automotive brake squeal problem. Pulsed holograms made on a brake disc assembly which squealed in a simulated service test in a laboratory loading fixture gave a clear display of the vibrating characteristics of the brake assembly. A subsequent investigation on free vibrating brake rotors excited by piezo-electric actuators simulated the service vibration patterns and provided means to evaluate natural disc vibrational modes. This capability in turn would lead to the evaluation of the vibration amplitude damping characteristics of various brake disc designs and materials that could be used in reducing brake squeal. Due to the limited scope of the investigation the development of a low damped brake disc was not carried out.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. D. Hovanesian, Y. Y. Hung, and M. A. Erickson "Study Of Brake Squeal Problem By Pulsed Holographic Interferometry", Proc. SPIE 0955, Industrial Laser Interferometry II, (14 December 1988);

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