Control of sound transmission into a closed cavity using smart structures

Michael L. Hill; Phil Chrissos; Leslie R. Koval; Vittal S. Rao; Frank J. Kern

doi:10.1117/12.207674

20 April 1995 Control of sound transmission into a closed cavity using smart structures

Michael L. Hill, Phil Chrissos, Leslie R. Koval, Vittal S. Rao, Frank J. Kern

Proceedings Volume 2444, Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation; (1995) https://doi.org/10.1117/12.207674
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

This paper describes several alternative solutions to the problem of controlling sound transmission through rectangular plates radiating into an enclosed cavity. The specific problem examined is how adaptive filtering compares with feedback control techniques for reducing the level of sinusoidal disturbances transmitted by the plate. In a smart structure with embedded sensors and actuators, it will be likely that feedback control is the preferred option. The feedback controllers examined are LQG/LTR, H(infinity) , internal disturbance model pole placement, and internal disturbance model LQG. These controllers are compared to the filtered-x LMS technique, which is the standard method of dealing with sinusoidal disturbances for this type of problem. All the controllers are examined using simulation and then implemented on a test structure.

Citation Download Citation

Michael L. Hill, Phil Chrissos, Leslie R. Koval, Vittal S. Rao, and Frank J. Kern "Control of sound transmission into a closed cavity using smart structures", Proc. SPIE 2444, Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation, (20 April 1995); https://doi.org/10.1117/12.207674

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