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Finite element modeling of active control of functionally graded shells in frequency domain via piezoelectric sensors and actuators

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Abstract

 A flat-shell element is presented for the active control of functionally graded material (FGM) shells through integrated piezoelectric sensor/actuator layers. The finite element formulation based on first-order shear deformation theory (FSDT) can be applied to shells ranging from relatively thin to moderately thick dimensions. A constant gain displacement and velocity feedback control algorithm coupling the direct and inverse piezoelectric effects is applied to provide active control of the integrated FGM shell in a self-monitoring and self-controlling system. Frequency response characteristics of the FGM shell containing the piezoelectric sensors/actuators are analyzed in the frequency domain. The effects of constituent volume fraction and the influence of feedback control gain values on the dynamic responses of the FGM shell system are examined in detail.

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Authors and Affiliations

  1. Institute of High Performance Computing, 89C Science Park Drive, #02-11/12, The Rutherford, Singapore 118261, , , , , , SG

    T. Y. Ng

  2. Centre for Advanced Numerical Engineering Simulations, CANES, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798 e-mail: mkmliew@ntu.edu.sg, , , , , , SG

    X. Q. He & K. M. Liew

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  1. T. Y. Ng
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  2. X. Q. He
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  3. K. M. Liew
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Received 13 November 2000

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Ng, T., He, X. & Liew, K. Finite element modeling of active control of functionally graded shells in frequency domain via piezoelectric sensors and actuators. Computational Mechanics 28, 1–9 (2002). https://doi.org/10.1007/s004660100264

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  • DOI: https://doi.org/10.1007/s004660100264

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