Abstract
This paper presents an analysis of the active control of random vibration for laminated composite plates using piezoelectric fiber reinforced composites (PFRC). With Hamilton’s principle and the Rayleigh-Ritz method, the equation of motion for the resulting electromechanical coupling system is derived. A velocity feedback control rule is employed to obtain an effective active damping in the suppression of random vibration. The power spectral density and mean-square displacements of the random vibration for laminated plates under different control gains are simulated and the validity of the present control strategy is confirmed. The effect of piezoelectric fiber orientation in the PFRC layer on the random vibration suppression is also investigated. The analytical methodology can be expanded to other kinds of random vibration.
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Project supported by the National Natural Science Foundation of China (Nos. 11502159 and 11390362), Natural Science Foundation of Shanxi (No. 2015021014), the Top Young Academic Leaders of High Learning Institutions of Shanxi, Shanxi Scholarship Council of China, the Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.
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Li, J., Ma, Z., Wang, Z. et al. Random vibration control of laminated composite plates with piezoelectric fiber reinforced composites. Acta Mech. Solida Sin. 29, 316–327 (2016). https://doi.org/10.1016/S0894-9166(16)30164-1
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DOI: https://doi.org/10.1016/S0894-9166(16)30164-1