240 セルラオートマトン法を用いた非線形特性を有する弦の強制振動解析

概要

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In this study, a nonlinear dynamic response of a string is simulated by using the CA method. The local rules are set for the amplitude of vibration and the decay rate of amplitude. The velocity of propagation in CA method is adequately defined and two type of nonlinear local rule are introduced in this study. From the numerical simulation, the validity of definition of the velocity of propagation is shown, the dynamic response with strong nonlinearity can be simulated by using the nonlinear local rule with respect to the absolute displacement and it cannot be simulated by using the rule with respect to the relative displacement. It is also shown there are some problems about the velocity of propagation in nonlinear analysis in CA method.
一般社団法人日本機械学会の論文
2000-09-01