Parametric control of structural vibrations via piezoelectric materials shunted with adaptive circuits

Kon-Well Wang; W. K. Yu; J. S. Lai

doi:10.1117/12.174204

1 May 1994 Parametric control of structural vibrations via piezoelectric materials shunted with adaptive circuits

Kon-Well Wang, W. K. Yu, J. S. Lai

Proceedings Volume 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures; (1994) https://doi.org/10.1117/12.174204
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

A new structural vibration control concept, using piezoelectric materials shunted with real- time adaptable electrical networks, has been developed. The variable resistance and inductance in an external RL circuit are used as control inputs. Novel energy-based parametric control schemes are created to reduce the total system energy (the main structure mechanical energy plus the electrical-mechanical energy of the piezoelectric material and electrical circuit) while minimizing the energy flowing into the main structure. The performances of the controllers are examined through computer simulations on a beam example. It is shown that the structure energy level and vibration amplitude can be suppressed effectively.

Citation Download Citation

Kon-Well Wang, W. K. Yu, and J. S. Lai "Parametric control of structural vibrations via piezoelectric materials shunted with adaptive circuits", Proc. SPIE 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures, (1 May 1994); https://doi.org/10.1117/12.174204

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