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정비범(Bee Bum Jung),백설(Serl Baik),민준호(Jun Ho Min) 한국자동차공학회 2015 한국자동차공학회 학술대회 및 전시회 Vol.2015 No.11
Under driving, A vehicle experiences various kinds of load and suspension system support it. Lower control arm(LCA), which is consist of ride and handling bushes and one ball joint connection, is the one of the most important parts in the suspension system. In developing early suspension parts, Buckling of the lower arm frequently generated in chassis module test. So need to analysis standard among development firms. In this paper, in order to predict the buckling load of the LCA more precisely, three analysis methods are newly suggested, that is, nonlinear bush stiffness and subframe stiffness add at A, G bush point and maximum rotation angle of ball joint using ABAQUS connection. Also considering GVW(gross vehicle weight) of the vehicle, define the Ball joint hardpoint. Through the paper, Buckling analysis reliability of LCA is improved.
맥퍼슨 현가장치에서 LCA 형상이 차량 SRS 성능에 미치는 영향 연구
김진식(Jinsik Kim),백설(Seol Back),민준호(Junho Min) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
SRS(Smooth Road Shake) performance at highway speed on smooth roads is one important attribute affecting vehicle ride performance quality. To ensure desirable SRS performance, achieve the best design compromises and minimize the development cost, specific design targets need to be defined and the proposed design needs to be assessed very early in the vehicle development cycle. In this paper, influence of LCA(Lower Control Arm) geometry on the SRS performance is analyzed for vehicle in MacPherson front suspension type. General guidelines for LCA designing MacPherson suspension is discussed to ensure achieving SRS performance.
스티어링 기어, 크레들 및 어태치먼트 시스템의 내구 시험 방법 연구
박현정(Hyunjeong Park),임재철(Jaechul Yim),유정민(Jungmin Ryoo),양준석(Junsuk Yang),한교진(Kyojin Han) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
These days, chassis part validation has saved time and expenses by executing bench test in the lab instead of full vehicle road test. However, it shows difficulties to demonstrate all vehicle parts motion in the full vehicle simulation test due to test boundary condition. Especially, steering gear system is hard to be reproduced in the full vehicle simulation test because it is difficult to turn the steering wheel. To compensate these problems, several kinds of steering system tests are running in the lab, apart from full vehicle tests. This study is to address a method to validate steering gear, cradle, structure and attachment system laboratory durability test.