SAE Recommended Practice J57a - Sound Level of Highway Truck Tires - specifies a simple, practical noise certification test procedure for tires which results in a single-number rating - maximum A-weighted sound level - of the coastby sound level measured according to prescribed procedures. Such a rating by itself, however, does not allow prediction of in-service noise levels. This report discusses the basic assumptions and necessary input data for a DOT/NBS developed empirical model which utilizes the certification test results to predict in-service noise levels. The usefulness and expected accuracy of the predictive model are shown through a comparison of measured versus predicted maximum A-weighted sound levels for a variety of truck/tire combinations.SAE Recommended Practice J57a - Sound Level of Highway Truck Tires - specifies a simple, practical noise certification test procedure for tires which results in a single-number rating - maximum A-weighted sound level - of the coastby sound level measured according to prescribed procedures. Such a rating by itself, however, does not allow prediction of in-service noise levels. This report discusses the basic assumptions and necessary input data for a DOT/NBS developed empirical model which utilizes the certification test results to predict in-service noise levels. The usefulness and expected accuracy of the predictive model are shown through a comparison of measured versus predicted maximum A-weighted sound levels for a variety of truck/tire combinations.
Empirical Model for Predicting In-Service Truck Tire Noise Levels
Sae Technical Papers
Highway Tire Noise Symposium ; 1976
1976-02-01
Conference paper
English
Certification , Test procedures , Trucks , Tires , Noise
Engineering Index Backfile | 1957
|TIBKAT | 1972
|SAE Technical Papers | 1957
|SAE Technical Papers | 1974
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