Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Modeling and the Optimization of an Electrical Vehicle using Joint Analysis

결합부 해석을 이용한 전기자동차 구조물의 모델링 및 최적화

  • 이광원 (한양대학교 대학원 기계설계학과) ;
  • 이권희 (정회원, 대우자동차) ;
  • 박영선 (정회원, 대우자동차) ;
  • 박경진 (정회원, 한양대학교 기계공학과)
  • Published : 1998.01.01
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Abstract

Currently, computational analysis is a popular technology in automobile engineering. Finite element analysis is an excellent method for body analysis. For finite element analysis, accurate modeling is very important to obtain precise information. Stick modeling is a convenient way in that it is easy and simple. When a stick model is utilized, the joints are modified in the tuning process. A tuning method for the joint has been developed. The joints are modeled by designated beam elements. An optimization method called "Goal Programming" is employed to impose the target values. With the tuned joints, the entire optimization has been carried out. Using the "Recursive Quadratic Programming" algorithm, the optimization process determines the configuration of the entire structure and sizes of all the sections. For example, the structure of an electrical vehicle is modeled and analyzed by the method. The stick model works well since the structure is made of aluminium frames. Although the example handles an electrical vehicle, this method can be applied to general vehicle structures.

Keywords

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