Analyses of squealing disk brakes generally show main frequencies from 1 to 10 kHz. On a test stand holograms exposed by time average and double-pulse techniques are recorded from various types of disk brakes. Photographs of reconstructions from those holograms display a vibration pattern in a simple topographical map of fringes, which represents contours of equal vibration amplitudes on the brake components: That would be i.e. yoke-type or fist-type callipers, brake pads and brake disk.Holographic Vibration Analysis is a useful method for looking at these small vibration amplitudes to understand different mechanisms of coupling. Also it is possible to localize vibration sources in squealing disk brakes.
Oscillations in Squealing Disk Brakes - Analysis of Vibration Modes by Holographic lnterferometry
Sae Technical Papers
1978 Automotive Engineering Congress and Exposition ; 1978
1978-02-01
Aufsatz (Konferenz)
Englisch
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