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토션빔 현가장치의 성능 평가를 위한 동특성 해석 및 시험
최규재,박정원,전광기,최성진,고정민,이동재(Gyoojae Choi),Jungwon Park,Kwangki Jeon,Sungjin Choi,Jungmin Ko,Dongjae Lee 한국자동차공학회 2004 한국자동차공학회 Symposium Vol.- No.-
The torsion beam axle is widely used in the rear suspension for small passenger cars due to low cost, good performance, etc. To develop the torsion beam axle, it is necessary to estimate the characteristics of rear suspension in the initial stage of the design process. The dynamic characteristics estimation of the torsion beam axle is performed using FEM, dynamic simulation and is verified through the real test. In this study, the natural frequency and roll stiffness of the torsion beam axle were predicted by FEM, and the FE model was validated by the comparison with test data. This study presents a result of dynamic and durability analysis for performance estimation of the torsion beam axle.<br/>
좌우 바퀴 노면 거칠기 상관도가 차량 운동 특성에 미치는 영향
최규재(Gyoojae Choi),장봉춘(Bongchoon Jang) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Vehicle dynamic simulation has been carried out using the coherence of road roughness between left and right wheels. The generated twin tracks with the coherence of road roughness between left and right wheels are in good agreements with the measured coherence relation of left and right wheels. And these tracks reflect well on the roughness characteristics of real roads. Using the generated roads and multibody dynamic simulation program, vehicle dynamic simulation is performed. The vertical and roll motion analysis of a vehicle are carried out using the realistic road profiles with the coherence between left and right wheels and the results are in good agreements with the dynamic characteristics of a vehicle.
샤시코너모듈 개발을 위한 부품의 내고 성능 예측에 대한 연구
최성진(Sungjin Choi),박정원(Jungwon Park),전광기(Kwangki Jeon),최규재(Gyoojae Choi),유영면(Yungmyun Yoo) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Chassis system has a large influence on ride quality, stability and NVH performance of a car. To improve the performance and reduce cost, the development of chassis modular assemblies is emphasized. To develop chassis corner modules, it is necessary to predict the performance of full vehicle motion such as ride, handling performance, NVH characteristics and durability of modules.<br/> In this paper, full vehicle simulations and tests are performed to acquire the design parameter of chassis corner module of passenger car. 3-axis simulator modeling are carried out to simulate reaction force analysis and fatigue analysis of new developed modules. Also, real vehicle tests to validate performance of new developed modules are performed. We had developed the accelerated durability test procedure of KA TECH PG and it is used to test chassis corner modules at laboratory and simulate durability performance.<br/> All these results have been provided to module and parts company and make an important role to develop chassis corner modules.<br/>
토션빔액슬 성능 평가를 위한 해석 모델 검증에 관한 연구
최성진(Sungjin Choi),한상원(Sangwon Han),박정원(Jungwon Park),전광기(Kwangki Jeon),최규재(Gyoojae Choi),고형규(Hyunggyu Ko),이동재(Dongjae Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The torsion beam axle type is widely used in the rear suspension for small passenger cars due to low cost. good performance. etc. To develop the torsion beam axle. it is necessary to estimate of the characteristics of rear suspension from the design process. The characteristics estimation of the torsion beam axle is performed using FEM. dynamic simulation and is veri fied the real test. In this study. the natural frequency and roll stiffness of the torsion beam axil: were measured by FEM. and the reliability of the FE model was evaluated according to the comparison of test data. This study presents a unique method for the finite element modeling and analysis of the torsion beam axle. The results of the FEA were verified using test data.