J122024 成長ひずみ法によるコンロッドの形状最適化の解析([J12202]解析・設計の高度化・最適化(2))

概要

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In this paper we investigated the optimization of the shape of the normal connecting rod for the car engine, using the growth-strain method. The analyses were done in case of compressive and tensile loads separately. The growth criterion parameters of the principal stress on the connecting rod were determined from the fatigue strength of the actual design data and the safety factor. We thought it is most compatible to use the fatigue strength which is safety side, smallest value of the material constants, because the connecting rod receives the reciprocating compressive and tensile loads. We omitted the bending stress on the column of the connecting rod, because it was negligibly small. After the analysis, we compared the volumes of the optimized configurations of the connecting rod with the original one. As the result, the reduction rate of the volume of the optimized connecting rod was approximately 22.8%.
一般社団法人日本機械学会の論文
2011-09-11