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신행우(Hangwoo Shin),조원용(Wonyong Cho),심기중(Kijoong Sim),최규재(Gyoojae Choi),이영춘(Youngchoon Lee),손영호(Youngho Son) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
In this study, To reduce the weight of the front axle beam for medium duty commercial vehicle, structural optimization was processed by applying design load case. Design parameters that affect the structural strength were set as thickness, width and height of upper frame. To analyze the influence of design parameters, Optimized methods were used. The final optimized design model has the higher strength than the initial design model.
가상시험기법을 이용한 승용차 전륜 알루미늄 서브프레임 내구설계
남진숙(Jinsuk Nam),신행우(Hangwoo Shin),최규재(Gyoojae Choi) 한국생산제조학회 2012 한국생산제조학회지 Vol.21 No.3
Durability performance evaluation of automotive components is very important and time consuming task. In this paper, to reduce vehicle component development time and cost virtual testing simulation technology is used to evaluate durability performance of a passenger car front aluminum sub-frame. Multibody dynamics based vehicle model and virtual test simulation model of a half car road simulator are validated by comparisons between rig test results and simulation results. Durability life prediction of the sub-frame is carried out using the model with road load data of proving ground which can evaluate accelerated durability life. We found that the durability performance of the sub-frame is sufficient and it can be predicted within short time compared to rig test time.
조원용(Wonyong Cho),신행우(Hangwoo Shin),최규재(Gyoojae Choi) 한국자동차공학회 2012 한국자동차공학회 지부 학술대회 논문집 Vol.2012 No.5-2
Recently, independent front suspension system for trucks are used to reduce fuel consumption and get better ride comfort. Because of heavy loads on wheels the components of the truck independent suspension system should be carefully designed. In this paper, structural and fatigue analysis of lower and upper control arms of the medium duty truck independent suspension system are carried out. It is found that the developed control arms have sufficient strength and fatigue life under design load conditions.