705 要素の実測特性に基づく履歴非線形機械振動系の特性解析に関する研究

概要

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Suspension devices using rubber in mechanical system show hystereteic nonlinearity, which have been dealt by some model as bilinear, Ramberg-Osgood model and others. In the analyses these models had difficulties to adapt parameters of the models to those measured for the devices. A method is developed which makes it possible to provide equivalent linearized transfer function numerically for the hysteretic nonlinear characteristics evaluated from the actual elements in terms of Preisach model. This makes it possible as well that the frequency response characteristics of the system can be obtained by solving the simultaneous equation in which the transfer functions are substituted into the equation of motion. An approximate modal approach to the nonlinear system can be conducted on the basis of measured characteristics for the devices.
社団法人日本機械学会の論文
2002-03-14