Aircraft engine noise research in the United States has made considerable progress over the past 10 years for both subsonic and supersonic flight applications. The Advanced Subsonic Technology (AST) Noise Reduction Program started in 1994 and will be completed in 2001 without major changes to program plans and funding levels. As a result, significant progress has been made toward the goal of reducing engine source noise by 6 EPNdB (Effective Perceived Noise level in decibels). This paper will summarize some of the significant accomplishments from the subsonic engine noise research performed over the past 10 years. The review is by no means comprehensive and only represents a sample of major accomplishments.
Recent Developments in U.S. Engine Noise Reduction Research
Fifteenth International Symposium on Airbreathing Engines ; 2001 ; Bangalore, India
01.09.2001
Report
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Englisch
Recent Developments in Vehicle Interior Noise Reduction
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