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THE TRANSPORT AND ROAD RESEARCH LABORATORY QUIET HEAVY VEHICLE PROJECT
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English
Abstract
Research into means of reducing noise from diesel-engined goods vehicles of 30-40 tonnes gross vehicle weight has shown that engine re-design can reduce noise from this component by 5-10 dB(A) within reasonable production, performance and cost constraints. Attention to the exhaust system, cooling package, engine covers and chassis design has resulted in a 10 dB(A) reduction in noise in the cab. Results are quoted from a number of experimental vehicle builds and the basis for a demonstration vehicle built to production standards which should meet a target drive-past noise level of 80 dB(A) is described.
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Citation
Cawthorne, A. and Tyler, J., "THE TRANSPORT AND ROAD RESEARCH LABORATORY QUIET HEAVY VEHICLE PROJECT," SAE Technical Paper 790452, 1979, https://doi.org/10.4271/790452.Also In
References
- 1970
- Anderton D. Grover E. C. Laylor N. Priede T. The Automotive Diesel Engine - it's Combustion, Noise and Design Inst. Mech. Eng. Conference on Land Transport Engines January 1977
- Brown J. R. “Pervious bitumen-macadam surfacings laid to reduce splash and spray at Stonebridge, Warwickshire” Department of the Environment TRRL Report LR 563 Crowthorne 1973 Transport and Road Research Laboratory