Noise Reduction of Heavy-Duty Trucks

810852

08/01/1981

Event
Passenger Car Meeting & Exposition
Authors Abstract
Content
This paper describes the development of noise control treatments for two heavy-duty diesel trucks. Noise levels are reduced to 72 dBA when measured according to the SAE J366b Recommended Practice. The treatments, comprising primary dual exhaust systems and partial engine enclosures, reduce exhaust back pressures by 0.3 to 0.4 in. Hg and add about 2 1/2 percent to the tractor weights. Cooling tests show that engine oil, engine coolant, and air-to-boil temperatures meet manufacturers' specifications. Maintenance studies indicate that about 5 min is required to remove and replace three key access panels.
Meta TagsDetails
DOI
https://doi.org/10.4271/810852
Pages
10
Citation
Bender, E., Bronsdon, R., and Remington, P., "Noise Reduction of Heavy-Duty Trucks," SAE Technical Paper 810852, 1981, https://doi.org/10.4271/810852.
Additional Details
Publisher
Published
Aug 1, 1981
Product Code
810852
Content Type
Technical Paper
Language
English