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Active Boom Noise Damping of Dodge Durango
Technical Paper
2001-01-1614
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Two active boom noise damping techniques using a Helmholtz resonator-based compensator and a lead compensator called a positive pressure feedback have been developed at the University of Dayton [1]. The two damping techniques are of feedback type and their compensators can be implemented in software or hardware (using inexpensive operational amplifiers). The active damping system would rely on a speaker, a low-cost microphone, two accelerometers, and an electronic circuit (or a micro-controller) to add damping to the offending low-frequency vibroacoustic modes of the cavity. The simplicity of the active boom noise damping system lends itself to be incorporated into a vehicle's sound system. The Helmholtz resonator-based strategy is implemented on a Dodge Durango sport utility vehicle. The control scheme adds appreciable amount of damping to the first cavity mode and the first structurally induced acoustic mode of the cabin.
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Citation
Kashani, R. and Orzechowski, J., "Active Boom Noise Damping of Dodge Durango," SAE Technical Paper 2001-01-1614, 2001, https://doi.org/10.4271/2001-01-1614.Also In
References
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