Optical Measurement Methods Of Disk Brake Noise Generation

W. F. Fagan; H. Abendroth

doi:10.1117/12.952413

16 July 1986 Optical Measurement Methods Of Disk Brake Noise Generation

W. F. Fagan, H. Abendroth

Proceedings Volume 0599, Optics in Engineering Measurement; (1986) https://doi.org/10.1117/12.952413
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

A description is given of how the technique of image derotation is applied to the study of low frequency noise generation of disk brakes. Infra-red imaging is combined with derotation to show the heat emission distribution on the rotor surface during a braking cycle. A series of regularly spaced hot spots are observed on the rotor's surface only when juddering-type, low frequency vibrations are present. This relationship will be discussed and future areas of research will be outlined including the use of laser doppler velocimetry and Electronic Speckle Pattern Interferometry (ESPI)/T.V. Holography techniques to study this phenomena.

Citation Download Citation

W. F. Fagan and H. Abendroth "Optical Measurement Methods Of Disk Brake Noise Generation", Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986); https://doi.org/10.1117/12.952413

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