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Proceedings Paper

Feedforward active interior noise control
Author(s): Balakumar Balachandran; Arun Sampath; John Park
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Paper Abstract

Analytical and experimental studies undertaken for controlling noise in the interior of a 3D enclosure with a flexible boundary are presented. The rigid boundaries are constructed from acrylic material, and the flexible boundary is constructed from aluminum materia. Noise generated by an external speaker is transmitted into the enclosure through the flexible boundary and active control is realized by using Lead Zirconate Titanate piezoelectric actuators bonded to the flexible boundary. Condenser microphones are used for noise measurements. For panel and cavity controller modes, analog controllers based on feedforward schemes using acoustic error signals are developed and discussed.

Paper Details

Date Published: 8 May 1995
PDF: 12 pages
Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); doi: 10.1117/12.208304
Show Author Affiliations
Balakumar Balachandran, Univ. of Maryland/College Park (United States)
Arun Sampath, Univ. of Maryland/College Park (United States)
John Park, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 2443:
Smart Structures and Materials 1995: Smart Structures and Integrated Systems
Inderjit Chopra, Editor(s)

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