大型車のエンジンマウントの最適設計 : 第5報,遺伝的アルゴリズムを用いたエンジンレイアウトの最適配置(機械力学,計測,自動制御)

概要

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In the case of the engine mounting layout, it's very important to prevent the coupled vibration of lateral and rolling mode for the isolations of the engine vibration and the shock torque. On the other hand, the lower eigen value which means the lower rolling stiffness K_<44> is also necessary, but it may cause the interference problem with engine and cabin, etc. So, its optimum layout is very difficult to select any parameters such as mounting types, mounting positions, and cushion rubber spring rates, etc. In this study, the genetic algorithm so called GA is newly applied for the optimization of many parameters, calculations of stiffness matrix and inverse stiffness matrix to obtain the displacement of each mounting point. As a result, inexperienced engineers can easily obtain the optimum engine mounting layout in a minute. By the confirmation test of FEM, the engine lateral vibration level at 25Hz dropped below 1/10 and its effect was significant.
社団法人日本機械学会の論文
2001-12-25