한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제15권1호
  • /
  • Pages.56-63
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  • 2007
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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Rollover Analysis of a Bus using Beam Element and Nonlinear Spring Characteristics

  • Park, Su-Jin (Defense Agency for Technology and Quality) ;
  • Yoo, Wan-Suk (School of Mechanical Engineering, Pusan National University) ;
  • Kwon, Yuen-Ju (Department of Mechanical Design Engineering, Pusan National University) ;
  • Kim, Jin-Bae (Daewoo Bus Corporation)
  • 발행 : 2007.01.01
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초록

In case of bus rollover, the body structure of the bus should be designed to ensure the survival space for passengers. So, this study focuses on evaluating rollover strength through a computer simulation using the commercial code, LS-DYNA3D at the initial stage of vehicle development. For this study, section structure was modeled using a simple beam element, and impact boundary conditions required by ECE(Economic Commission for Europe) regulation No.66 were applied. In order to confirm the validity of the beam element bus model, the results compared with the test results and shell element bus model. The analysis errors from beam element bus model are due to the difference in strain energy of joint area between beam and shell model. In this study, a method for the joint modeling was suggested by using nonlinear springs to which the collapse mechanisms were applied.

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참고문헌

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