Deflection control of beam-like structures by using a piezoelectric sensor and actuator

Ji Yao Shen; Lonnie Sharpe Jr.; Min Fu Lu

doi:10.1117/12.208299

8 May 1995 Deflection control of beam-like structures by using a piezoelectric sensor and actuator

Ji Yao Shen, Lonnie Sharpe Jr., Min Fu Lu

Proceedings Volume 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems; (1995) https://doi.org/10.1117/12.208299
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

A finite element model for piezo-layer bonded beams, based on general finite element approach, has been developed. The modified model has been applied to the deflection controller design of a cantilevered beam supporting a distributed load q, by using piezoelectric layer as both sensors and actuators. The sensors generate electric voltages caused by the deflection of the loaded beam and the voltages through amplifiers apply to the actuators which generate control bending moments on the composite beam. A numerical examples for deflection control of a composite beam with seven elements is presented in detail in this paper.

Citation Download Citation

Ji Yao Shen, Lonnie Sharpe Jr., and Min Fu Lu "Deflection control of beam-like structures by using a piezoelectric sensor and actuator", Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); https://doi.org/10.1117/12.208299

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