Oscillations in Squealing Disk Brakes - Analysis of Vibration Modes by Holographic lnterferometry 780333
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.
Citation: Felske, A., Hoppe, G., and Matthäi, H., "Oscillations in Squealing Disk Brakes - Analysis of Vibration Modes by Holographic lnterferometry," SAE Technical Paper 780333, 1978, https://doi.org/10.4271/780333. Download Citation
Author(s):
A. Felske, G. Hoppe, H. Matthäi
Affiliated:
Research and Development Div., Volkswagenwerk AG (Wolfsburg/W. Germany)
Pages: 20
Event:
1978 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1978 Transactions-V87-A
Related Topics:
Brake discs
Brake pads
Brake components
Vibration
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