Sensor and actuator topology for vibration control and parameter estimation

Michael I. Friswell; Daniel J. Inman

doi:10.1117/12.276591

13 June 1997 Sensor and actuator topology for vibration control and parameter estimation

Proceedings Volume 3039, Smart Structures and Materials 1997: Mathematics and Control in Smart Structures; (1997) https://doi.org/10.1117/12.276591
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Active vibration control is using increasingly large numbers of sensors and actuators to achieve ever-improving results in the control of distributed systems. As the number of actuators and sensor increases, computational effort for control purposes increases. As the number of actuators and sensors grows, so too does the frequency range over which it is sensible to attempt active control and the time available for control calculations is therefore shrinking. Notwithstanding the remarkable rate at which processor speeds continue to increase, it is evident that full multi- input multi-output control cannot continue to be applied for increasing numbers of sensors and actuators. The requirements for every actuator to have an amplifier and every sensor to have signal conditioning is also very demanding. This paper addresses the issue of how best to implement the controller and estimator in smaller sensor/actuator groups and to determine the optimum topology, or grouping, of the sensors and actuators. The demands of both the control and the parameter estimation are addressed, and the implementation of modal control and selective sensitivity estimation algorithms are described.

Citation Download Citation

Michael I. Friswell and Daniel J. Inman "Sensor and actuator topology for vibration control and parameter estimation", Proc. SPIE 3039, Smart Structures and Materials 1997: Mathematics and Control in Smart Structures, (13 June 1997); https://doi.org/10.1117/12.276591

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