二自由度系の防振理論 : 第2報,基礎から遠い側の質量に調和加振力が作用する場合

概要

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This paper presents expressions and computational graphs to determine the optimal tuning and damping parameters for a linear system with two degrees of freedem. The maFss m_1 is connected to an immovable foundation through a spring k_1 and a dashpot c_1. An impressed harmonic force acts on the mass m_2. Either of the masses (named main mass) should be isolated from the vibration originating from the impressed force ; whereas, the other mass functions as a dynamic absorber. The optimization criterion is minimizing the maximum displacement of the main mass. The optimal design parameters can be formulated when c_1=0. If c_1≠0, optimization is carried out using numerical analysis, such as the Newton-Laphson method. The optimal conditions obtained theoretically are summarized in graphs, and tested on a vibratory model. The experiment makes is clear that the theory is very useful for the isolation of actual mechanical vibrations.
一般社団法人日本機械学会の論文
1986-04-25