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The application of an active Helmholtz resonator to an intake system

Lars Hansson (Institutionen för bygg- och miljöteknik, Teknisk akustik, Vibroakustik)
Proceedings of AIA-DAGA 2013 Conference on Acoustics, EAA Euroregio/EAA Winter School, 18--21 March 2013 in Merano p. 1063-1066. (2013)
[Konferensbidrag, övrigt]

Active control of sound and vibration can be utilised for tailoring the interior or exterior sound of vehicles. In contrary to passive systems it allows a high flexibility and eventually less space, especially when focusing on low frequencies. This paper deals with the application of an active Helmholtz resonator for the intake system of a two-cylinder engine. The application is tested in an experimental set-up where an adaptive harmonic feed-forward controller is designed. The reference signal is obtained from the tacho-signal of the engine. Different approaches for the decoder are discussed together with performance of the controller in different situations.

Nyckelord: active noise control, intake noise, adaptive harmonic control, active Helmholtz resonator



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Denna post skapades 2013-06-28.
CPL Pubid: 179442

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Teknisk akustik, Vibroakustik (2005-2017)

Ämnesområden

Transport
Akustik

Chalmers infrastruktur