• Title/Summary/Keyword: 차륜-레일 2점 접촉

Search Result 2, Processing Time 0.016 seconds

A Three Dimensional Wheelset Dynamic Analysis considering Wheel-rail Two Point Contact (차륜-레일 2점 접촉을 고려한 3차원 윤축 동역학 해석)

  • Kang, Ju-Seok
    • Journal of the Korean Society for Railway
    • /
    • v.15 no.1
    • /
    • pp.1-8
    • /
    • 2012
  • Wheelset dynamic analysis is a key element to determine the degree of accuracy of railway vehicle dynamics. In this study, a three-dimensional wheelset dynamic analysis is presented in such a way that the precise wheel-rail contact analysis in three-dimension is implemented into the dynamic equations of a wheelset. A numerical procedure that can be used for the analysis of a wheelset dynamics when the wheel-rail two point contact occurs in a cornering maneuver is developed. Numerical solutions of the constraint equations and the dynamics equations of a wheelset are achieved by using Runge-Kutta method. The proposed wheelset dynamic analysis is validated by comparison against results obtained from VI-RAIL analysis.

Contact Point Analysis for Wheel/Rail Contact Force Calculation (차륜/레일간의 접촉력 계산을 위한 접촉점 해석 알고리즘)

  • 박정훈;임진수;황요하;김창호
    • Journal of the Korean Society for Railway
    • /
    • v.2 no.3
    • /
    • pp.1-8
    • /
    • 1999
  • In this paper, descibed was the derived algorithm for calculating contact point between wheel and rail and the developed method for rail modeling. The proposed methods use travelling distance to represent rail center line position vector and rail orientation with respect to Newtonian reference frame. The methods call be easily used ill multibody dynamic analysis. Two numerical examples are shown to verify the validity of the proposed methods.

  • PDF