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Use of Coherence and Frequency Response Functions to Locate and Define Vibration Noise Sources in Rolling Tires
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English
Abstract
The procedure for measuring and analyzing in-service tire vibration and sound data is described. Signal analysis techniques are applied to obtain tire vibration spectral histories, vibration-to-sound coherence, and vibration frequency response functions. Evaluation of the coherence function demonstrates the existence of a statistical relationship between tire vibration and sound. Vibration spectral histories display the decay of energy in the tire structure. Use is made of the frequency response function to determine the relative levels of vibration in the tread and sidewall regions. These results define the vibration noise source location and size.
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Citation
Eberhardt, A. and Reiter, W., "Use of Coherence and Frequency Response Functions to Locate and Define Vibration Noise Sources in Rolling Tires," SAE Technical Paper 770027, 1977, https://doi.org/10.4271/770027.Also In
References
- Reiter, W. F. Jr. Eberhardt A. C. “Truck Tire Vibration Noise.” SAE West Coast Meeting, SAE 740609 1974
- Reiter, W. F. Jr. Eberhardt A. C. “Radio Telemetry Applied to Tire Vibrations.” SAE Automobile Engineering Meeting, SAE 760745 1976
- Eberhardt A. C. Reiter, W. F. Jr. “Digital Signal Processing Techniques in Truck Tire Vibration and Sound Analysis.” 1976 IEEE International Conference on Acoustics, Speech, and Signal Processing, Conference Record Philadelphia, Pennsylvania April 1976
- Bendat J. S. Piersol A. G. “Random Data: Analysis and Measurement Procedures.” John Wiley & Sons New York 1971
- Eberhardt A. C. “Digital Signal Analysis with Application to Truck Tire Sound and Vibration.” North Carolina State University Raleigh, North Carolina March 1975
- Cremer L. Heckl M. Ungar E. E. “Structure-Borne Sound.” Springer-Verlag New York 1973