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Sound transmission reduction with intelligent panel systemsExperimental and theoretical investigations are performed of the use of intelligent panel systems to control the sound transmission and radiation. An intelligent structure is defined as a structural system with integrated actuators and sensors under the guidance of an adaptive, learning type controller. The system configuration is based on the Active Structural Acoustic Control (ASAC) concept where control inputs are applied directly to the structure to minimize an error quantity related to the radiated sound field. In this case multiple piezoelectric elements are employed as sensors. The importance of optimal shape and location is demonstrated to be of the same order of influence as increasing the number of channels of control.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Fuller, Chris R.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Clark, Robert L.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1992
Publication Information
Publication: NASA. Langley Research Center, Fourth Aircraft Interior Noise Workshop
Subject Category
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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