Sound Pressure Levels Generated by Internal Combustion Engine Exhaust Systems

720155

02/01/1972

Event
1972 Automotive Engineering Congress and Exposition
Authors Abstract
Content
A computer program has been developed which predicts the sound pressure level and the frequency spectrum produced by simple engine exhaust systems. The program utilizes unsteady flow gas dynamic theory to predict the pressure-time history in the exhaust system and the velocity-time history at the open end of the system. Acoustic theory is then used to predict the sound pressure levels and frequency spectrum in free space.
The work was carried out on a twin-cylinder four-cycle engine, but the theory can be applied to any internal combustion engine.
Meta TagsDetails
DOI
https://doi.org/10.4271/720155
Pages
11
Citation
Blair, G., and Spechko, J., "Sound Pressure Levels Generated by Internal Combustion Engine Exhaust Systems," SAE Technical Paper 720155, 1972, https://doi.org/10.4271/720155.
Additional Details
Publisher
Published
Feb 1, 1972
Product Code
720155
Content Type
Technical Paper
Language
English