Control of Sound Transmission into a Closed Cavity Using Smart Structures
Spillman, William B.
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.
M. L. Hill et al., "Control of Sound Transmission into a Closed Cavity Using Smart Structures," SPIE Proceedings, SPIE -- The International Society for Optical Engineering, Jan 1995.
The definitive version is available at http://dx.doi.org/10.1117/12.207674
Smart Structures and Materials 1995
Mechanical and Aerospace Engineering
Electrical and Computer Engineering
Keywords and Phrases
Smart Structures; Feedback Control; Sensors; Simulations; Actuators; Feedback
Article - Conference proceedings
© 1995 SPIE -- The International Society for Optical Engineering, All rights reserved.