휠-레일 접촉 알고리즘 개발 및 동역학 해석

Developement of the Wheel-Rail Contact Algorithm and Dynamic Analysis

  • 조재익 (아주대학교, 기계공학부 대학원) ;
  • 박태원 (아주대학교, 기계공학부) ;
  • 윤지원 (아주대학교, 기계공학부) ;
  • 김지영 (아주대학교, 기계공학부)
  • 발행 : 2010.06.10

초록

The railway vehicle consists of wires, bodies, bogies and wheelsets, and each part has very complex mechanism. In this paper, wheel-rail contact algorithm is implemented using C++ and inserted into the ODYN which is a dynamic analysis program. To analyze wheel-rail contact mechanism, information such as contact points, contact angle and rolling radius is calculated according to the wheel and rail profile. Using this information, a table for the calculation of the wheel-rail contact analysis is made according to the lateral displacement. And, the creepage and normal force are calculated and a creep force is estimated by the FASTSIM. To verify the reliability of the wheel-rail contact algorithm, results of the program are compared with the ADAMS/Rail and paper. Finally, a wheelset of the railway vehicle is modeled using ODYN and simulated static and dynamic analysis. And, to verify the reliability of the simulation results, a displacement, velocity, acceleration and force are compared with results of ADAMS/Rail.

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