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An ANVC System with Inertial Mass Actuators
Responsible organisation
1998 (English)Conference paper, (Refereed) Published
Abstract [en]

Different actuators have been developed for active noise cancellation. For volumetric applications, a loudspeaker is usually used. When the noise is induced by engines it may be more efficient to work on the noise source itself, the engine vibration. In this case it is important to have an actuator that can counteract the vibration, not the sound field. In the research project AVIIS (Active Vibration Isolation In Ships), such an actuator has been developed. The actuator is an electrodynamic, inertial mass type shaker, designed and tuned for this project. The boat used in these experiments is a Storebro Royal Cruiser 33, powered by two Volvo Penta TAMD engines. Prior research, \cite{thomas1} shows that the main transmission paths for the vibrations from the engine and the propeller to the hull, are through these four mounting points. Once the hull is excited, a lot of sound and annoying noise is produced in the cabin. The main idea is to isolate these vibrations from the hull by adding a combined active and passive engine mount that will control the vibrations by minimizing the sound field in the cabin using microphones as error sensors.

Place, publisher, year, edition, pages
Christchurch, New Zeeland, 1998.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9852Local ID: oai:bth.se:forskinfo80ECB504396EDAC9C1256C7100238FFCOAI: oai:DiVA.org:bth-9852DiVA: diva2:837817
Conference
Inter-Noise 98
Available from: 2012-09-18 Created: 2002-11-14 Last updated: 2015-06-30Bibliographically approved

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