Engine Noise Testing in an Economical “Semi” Anechoic Room 780171
A “semi” anechoic room design has been proposed and constructed from readily available, inexpensive construction materials. To demonstrate its feasibility, noise testing was conducted using a rotary engine as the noise source.
The results of the testing indicated that the design is functional since free field conditions exist. This condition was proven to exist for at least one angular position measured relative to the exhaust pipe and in the horizontal plane of the exhaust pipe. Other information is provided concerning engine behaviour and type of noise radiated.
Citation: Gaspar, R., Reif, Z., and Sridhar, K., "Engine Noise Testing in an Economical “Semi” Anechoic Room," SAE Technical Paper 780171, 1978, https://doi.org/10.4271/780171. Download Citation
Author(s):
Robert Gaspar, Zygmunt Reif, K. Sridhar
Affiliated:
Dept. of Mechanical Engrg. Univ. of Windsor Windsor, Ontario
Pages: 12
Event:
1978 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Exhaust pipes
Rotary engines
Noise
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