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Modeling and Verification of Multibody Dynamics Model of Military Vehicle Using Measured Data

실차 측정 정보를 이용한 군용 차량의 다물체 동역학 모델링 및 검증

  • Ryu, Chi Young (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jang, Jin Seok (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Yoo, Wan Suk (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Cho, Jin Woo (Agency for Defense Development) ;
  • Kang, E-Sok (Department of Mechanical Design Engineering, Chungnam Nat'l Univ.)
  • Received : 2014.03.10
  • Accepted : 2014.08.01
  • Published : 2014.11.01

Abstract

It is essential to perform driving performance tests of military vehicles on rough terrain. A full car test is limited by cost and time constraints, because of which a dynamic analysis via computer simulation is preferred. In this study, a vehicle model is developed using MSC.ADAMS, a commercial multibody analysis program, and compared via experiments. FTire is modeled using the results of a tire performance test to obtain the vertical stiffness. A nonlinear damper is modeled by a characteristic experiment. Leaf springs are modeled with beam force elements and consisted to a vehicle model. The vertical force and acceleration response of the wheel are identified when vehicle is passing over a simple bump as well as a sinusoidal road. The developed vehicle model is verified with the results of a full car test.

Acknowledgement

Supported by : 국방과학연구소

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