Active control of low-frequency broadband jet engine exhaust noise

1996 ◽  
Vol 44 (1) ◽  
pp. 45 ◽  
Author(s):  
Jerome P. Smith ◽  
Ricardo A. Burdisso ◽  
Chris R. Fuller ◽  
Robert G. Gibson
Keyword(s):  
Active Control ◽  
Low Frequency ◽  
Engine Exhaust ◽  
Jet Engine ◽  
Exhaust Noise

Active noise control for attenuation of low‐frequency broadband jet engine exhaust noise

1994 ◽  
Vol 96 (5) ◽  
pp. 3332-3332
Author(s):  
Jerome P. Smith ◽  
Ricardo A. Burdisso ◽  
Chris R. Fuller ◽  
Rob Gibson
Keyword(s):  
Noise Control ◽  
Active Noise Control ◽  
Low Frequency ◽  
Engine Exhaust ◽  
Jet Engine ◽  
Active Noise ◽  
Exhaust Noise

Reduction of engine exhaust noise in a jet engine test cell

2011 ◽  
Vol 59 (2) ◽  
pp. 194 ◽  
Author(s):  
Wei Hua Ho ◽  
Jordan Gilmore ◽  
Mark Jermy
Keyword(s):  
Test Cell ◽  
Engine Test ◽  
Engine Exhaust ◽  
Jet Engine ◽  
Exhaust Noise

G12V190 Type Diesel Engine Exhaust Muffler Design Based on Transfer Matrix Method

2011 ◽  
Vol 295-297 ◽  
pp. 1460-1464
Author(s):  
Jin Sheng Ma ◽  
Ling Zhou ◽  
Zhi Quan Dang ◽  
Zi Feng Liu ◽  
Da Min Zhuang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Low Frequency ◽  
Calculation Procedure ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Exhaust Noise ◽  
Noise Frequency

In this paper the diesel engine exhaust noise in petroleum well workplaces has been measured, the peak values scatters mainly in the low-frequency range, and the top value has reached 123dB. Based on transfer matrix method, this paper analyzes six kinds of silencing elements and establishes optimizing calculation procedure for diesel engine exhaust muffler. According to optimizing calculation procedure and exhaust noise frequency spectrum characteristic of diesel engine, we have designed a new large amount resistance muffler for G12V190 type diesel engine. After petroleum well scene experiment, the insertion loss of exhaust muffler has reached 33dB.

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