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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/69121

    Title: 被動式吸振器應用於結構多模態減振;Application of a Passive Piezoelectric Absorber for Reducing Multi-Mode Vibration of Structures
    Authors: 范植傑;Fan,Chih-Chieh
    Contributors: 機械工程學系
    Keywords: 被動式壓電吸振器;多模態;負電容
    Date: 2015-08-21
    Issue Date: 2015-09-23 15:29:40 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本文主要目的為探討被動式吸振器應用於結構多模態減振,應用於受外力而振動之懸臂樑,藉由將樑之表面貼上陶瓷壓電片,再設計雙迴圈電路搭配電阻、電感、電容、二極體而組成的被動式吸振電路,以達到懸臂樑之減振效果。
    ;The purpose of this research is to develop a newly designed passive piezoelectric absorber for reducing multi-mode vibration of a cantilever beam excited by an external force. A tranditional passive piezoelectric absorber consists of a piezoelectric shunt attached to the structure, a resistance, and an inductance. The new absorber introduced here includes an additional passive loop in parallel.
    In the thesis, the equations of motion of the beam are derived by using Hamilton’s principle and discretized by Galerkin’s method. Numerical program is developed to simultaneously solve the equations of motion of the beam, which is coupled with circuit equations of the absorber. Different designs of the absorber circuits and different values of parameter are used to find the better results. The numerical results are confirmed by experimental results. According to the present results, the new passive absorber can achieve more vibration reduction of a structure than the tranditional passive absorber.
    Appears in Collections:[機械工程研究所] 博碩士論文

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