This paper discusses the concepts and feasibility of using active attenuators for the control of low frequency vehicle exhaust noise. Particular emphasis is placed on the development of a fast adaption system which can rapidly adjust to the changing sound field generated at the exhaust outlet. The paper illustrates the degree of noise reduction achieved using a prototype active attenuator fitted to a large (320 hp) diesel engine both on the test bed and when fitted to an operating vehicle.
Development of a prototype exhaust noise cancellation system for commercial vehicle application
Entwicklung des Prototypes eines Systems zur Auspufflaermunterdrueckung fuer Nutzfahrzeuge
21th Automobile Technical Congr. FISITA ; 2 , Jun ; 341-345
1986
5 Seiten, 9 Bilder, 3 Quellen
Conference paper
English
Development of a prototype exhaust noise cancellation system for commercial vehicle application
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