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Experimental and Numerical Analysis of Structural Acousticcontrol Interior Noise ReductionThe research results contained in this technical report were performed under the NASA grant entitled "Experimental and Numerical Structural Acoustic Control for Interior Noise Reduction". The report is based essentially on partial progress of the Ph.D. dissertation prepared by Jeffrey S. Bevan under direct guidance of Dr. Chuh Mei. The document presents a finite element formulation and control of sound radiated from cylindrical panels embedded with piezoceramic actuators. The extended MIN6 shallow shell element is fully electrical-structural coupled. A piezoelectric modal actuator participation (PMAP) is defined which indicates the actuator performance to each of the offending modes. Genetic algorithm is also employed to validate the sensor and actuator locations determined by the PMAP criteria. The work was conducted at the Department of Aerospace Engineering, Old Dominion University. Mr. Travis L. Turner, Structural Acoustics Branch, NASA Langley Research Center is the technical monitor.
Document ID
19990052758
Acquisition Source
Langley Research Center
Document Type
Other
Authors
Mei, Chuh (Old Dominion Univ. Norfolk, VA United States)
Bevan, Jeffrey S. (Old Dominion Univ. Norfolk, VA United States)
Date Acquired
September 6, 2013
Publication Date
January 9, 1999
Subject Category
Acoustics
Report/Patent Number
ODURF-151651
Funding Number(s)
CONTRACT_GRANT: NAG1-1684
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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