減衰系に取り付ける並列型二重動吸振器の準最適数値解

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  • Quasi-Optimal Numerical Solution of Parallel-Type Dynamic Vibration Absorber in Damping System

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<p>Multiplexing dynamic vibration absorber (DVA) provide better vibration control force compared to classical single-mass DVA. In fact, previous studies have shown that the vibration suppression performance of double-mass DVAs is superior to that of the single-mass DVA. In the optimal design of a parallel-type double-mass DVA, five dimensionless design parameters must be optimized. One of them is the mass ratio of two DVAs arranged in parallel. However, in many cases, especially in the parallel-type, the mass ratio of two DVAs cannot be set to the optimal value, because existing structures and machine parts are often used as DVA. This article investigates how the optimal values of other design parameters vary when the two DVA masses are set equal, and finally, how much the vibration suppression performance of the DVA deteriorates. The results of this study revealed that the performance degradation of the DVA was slight, and that few practical problems would arise. However, since this approximation reduces the number of parameters for the DVA from five to four, we had hoped the an algebraic solution rather than a numerical solution could be derived, but this was not possible.</p>

収録刊行物

  • ばね論文集

    ばね論文集 2023 (68), 57-68, 2023-03-31

    日本ばね学会

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