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이재형(J.Lee),조시기(S.G.Jho),유홍회(H.H.Yoo),이장무(J.M.Lee) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper presents simulation results of a vehicle with a flexible frame.<br/> The mass and stiffness data are obtained by a finite element analysis<br/> program and used in a multibody dynamics program. The vehicle<br/> consists of a sprung mass, a flexible frame, suspensions, and tires, and has total 166 degrees of freedom.<br/> The outputs are compared with those of a vehicle with a rigid frame. The results shows that reaction forces between bodies are significantly different, but displacements, and velocities are not much different for the vehicle. Acceleration is almost same at low speeds but quite different peak values at high speed. Phase lag is also observed from the results.<br/> Computational efforts needed for the analysis are compared too.<br/>