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Exterior Truck Noise Measurements on Turbocharger Retrofit
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English
Abstract
Exterior noise level measurements were conducted on a typical in-service diesel engine heavy duty truck to determine the noise level reduction resulting from a turbocharger retrofit. The tests were conducted in accordance with procedures recommended by the Society of Automotive Engineers and the United States Department of Transportation. Overall noise level measurements and a narrow-band spectrum analysis indicate that a significant noise level reduction is obtained from the installation of a turbocharger kit. The lower noise level is the result of a smoother pressure development during combustion. The narrow-band analysis shows a significant amplitude reduction at the engine firing frequency and a general decrease in noise energy over the whole frequency range.
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Citation
Pisarski, J., "Exterior Truck Noise Measurements on Turbocharger Retrofit," SAE Technical Paper 760549, 1976, https://doi.org/10.4271/760549.Also In
References
- Society of Automotive Engineers Recommended Practice J366b “Exterior Sound Level for Heavy Trucks and Busses,” April 1973
- Close W. H. Clarke R. M. “Trucks Noise-Interior and Exterior A-Weighted Sound Levels of Typical Highway Trucks,” Department of Transportation Report OST/TST-72-2 July 1972
- Jenkins S. H. Lalor N. Grover E. C. “Design Aspect of Low-Noise Diesel Engines,” SAE Paper 730236 1973
- Priede T. Grover E. C. Anderton D. “Combustion Induced Noise in Diesel Engines,” Diesel Engine Users Assn. London Paper 317 1967
- Priede T. “Noise and Vibration Problems in Vehicles,” J. Sound and Vibration 6 3 1967
- Anderton D. Baker J. “Influence of Operating Cycle on Noise of Diesel Engines,” SAE Paper 730241 1973
- Russell M. F. “Automotive Diesel Engine Noise and Its Control,” SAE Paper 730243 1973
- Jenkins S. H. “Identifying Engine and Vehicle Noise Sources,” Diesel and Gas Turbine Progress October 1972
- Austen A. E. W. Priede T. “Noise of Automotive Diesel Engines: Its Cause and Reduction,” SAE Paper 1000A 1965
- Anderton D. Duggal V. K. “Effect of Turbocharging on Diesel Engine Noise, Emissions and Performance,” SAE Paper 750796 1975
- Challen B. J. “The Effect of Combustion System on Engine Noise,” SAE Paper 750798 1975