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차체의 구조강성 평가를 위한 차체 구조, 굽힘 및 비틀림 강성의 고려

The Consideration of Automotive Body Structure, Bending and Torsional Stiffness for Structure Stiffness Estimation of Automotive Body

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주제분류기계공학

초록

The structural performance of a vehicle can be evaluated by the static and dynamic structural analyses which predict the amount of deformation, stiffness. And the static analysis should be done first. Another important aspect to be considered in the design process is crashworthiness, because a structurally sturdy vehicle body may be overdesigned with excessive strength and durability standards. The ideal condition of a body structure is to absorb impact load at a certain level of local deformation, to distribute the load to each structure adequately, and to prevent excessive stress concentration and deformation. This paper is the result of the consideration of automotive body, bending and torsional stiffness for structure stiffness estimation of automotive body through finite element modeling.

Abstract

The structural performance of a vehicle can be evaluated by the static and dynamic structural analyses which predict the amount of deformation, stiffness. And the static analysis should be done first. Another important aspect to be considered in the design process is crashworthiness, because a structurally sturdy vehicle body may be overdesigned with excessive strength and durability standards. The ideal condition of a body structure is to absorb impact load at a certain level of local deformation, to distribute the load to each structure adequately, and to prevent excessive stress concentration and deformation. This paper is the result of the consideration of automotive body, bending and torsional stiffness for structure stiffness estimation of automotive body through finite element modeling.

참고문헌 (10)

  1. D. P. Hong, "A study on clutch-disc torsional characteristic for torsional vibration reduction at idling", Transactions of Korea Noise-Vibration Society, pp.82~87 (1994)
  2. C. Y. Song, "Bendingtorsional vibration characteristics of large structures influenced by coupling effects", Transactions of Korea Noise-Vibration Society, pp.208~216 (1995)
  3. Effect of flexible connections on body structural response, "D. C. Chang", SAE, ~, pp.SAE paper 740041 (2004)
  4. 구정서, "소재대체를 이용한 철도 차량구조의 개념설계 연구", 한국전산구조공학회논문집, 17(2), pp.171~182 (2004), 한국전산구조공학회
  5. M. F. Nelson, "The use of inertia relief to estimate impact loads", SAE Transactions, 86(770604), pp.2237~2243 (2006)
  6. A. E. Duncan, "Understanding NVH Basics", IBEC Body Design &Engineering, pp.111~116 (2007)
  7. Structural joint stiffness of automotive body, "Toshiaki Sakurai", SAE, ~, pp.SAE paper 880550 (2010)
  8. S. P. Timoshenko, "Theory of elastic stability" (2010), McGraw-Hill
  9. Kollbrunner, "Torsion in Structures : An Engineering Approach" (2011), Spring-verlag
  10. M. M. Kamal, "Modern Automotive Structural Analysis" (2011), Van Nostrand Reinhold Co.

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