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차량 내부 조향장치 파손방지를 위한 아우터 타이로드의 최적 휨 설계
은효준(Hyojun Eun),신용상(Yongsang Shin),안명훈(Myeonghoon Ahn),정연웅(Yeonwoong Jung),김민준(Minjoon Kim),이문규(Moonkyu Lee),이희갑(Hee-Gab Lee),추용주(YoungJu Chu),이승엽(Seung-Yop Lee) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
In the automobile steering system, Tie-rod acts as a sacrificial part to protect the inner steering gear such as rack and pinion. Therefore, the allowable maximum buckling load is crucial design constraint as well as minimum buckling load. The previous model was recognized to be overdesigned so that it should be remodeled to reduce critical buckling load. In this paper, we showed design method of bent outer Tie-rod giving initial imperfection with eigen buckling mode. However, the bent design brings about mass gain although it makes substantial decrease of critical buckling load. So we set the multi-objective optimizing problem to minimize the value of critical buckling load and mass gain with two kinds of structure design variables – scale factor & bent length. As a result, we obtained the optimum parameters that reduced critical buckling load by 64.96%, and 9.05% mass gain.