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CATIA를 활용한 교육용 자작자동차 개발에 관한 연구
김광석(Kwangsuk Kim) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
This paper is research of design and manufacture of a vehicle. Through seminar about automotive design principle, an undergraduate students studied concept about vehicle design. Vehicle frame designed by CATIA V5. Also, composed finite element model of designed frame and executes static and dynamic analysis. A DMU model for a full vehicle was built using CATIA V5 and used to check interference between parts and to simulate assembly process. Through this project, the undergraduate students could acquire knowledge about vehicle development process.
[차량운동성능부문] 차량동역학 해석을 위한 효율적인 현가장치 모델링 - 힘요소와 부싱요소를 고려한 무질량링크 모델 -
손정현(Jeonghyun Sohn),김광석(Kwangsuk Kim),유완석(Wansuk Yoo),이종년(Jongyun Lee) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, a massless link model transmitting suspension forces is developed to achieve the simulation efficiency. Forces acting on links are resolved and transferred to attachment points with quasi-static assumption. Also, a theoretical derivation and computer implementation of a bushed massless link are proposed. The deformation state of a bushed massless link is derived by minimizing the potential energy function with quasi-static equilibrium assumption at each time step. Several simulations with full vehicle model are carried out to compare the efficiency of the developed massless link component.
손정현(Jeonghyun Sohn),유완석(Wansuk Yoo),김광석(Kwangsuk Kim) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3
Power steering system has been adopted in most vehicle system for an easy maneuverability. In this paper, a hydraulic power steering(HPS) module is developed using DADS user-defined subroutine and applied to power steering simulation. The simulation shows that steering wheel torque with HPS module is less than that without HPS module. In addition, the shimmy vibration at the steering wheel is also simulated with DADS and compared to the test data. Lateral displacement of the steering wheel is calculated imposing the lateral acceleration of the knuckle as a vibration input. The frequency response of the steering wheel is in a good agreement to the test data.