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- W2076248520 abstract "윤축 동역학 해석은 철도차량 동역학 해석의 정밀도를 결정하는 핵심 요소이다. 본 연구에서는 정밀한 3차원 차륜-레일 접촉 해석을 윤축의 강체 운동 방정식에 적용하는 방법으로 3차원 윤축 동역학 해석을 수행하였다. 곡선 주행시 플랜지 접촉에 의해 차륜-레일 2점 접촉이 발생할 때 윤축의 동역학 해석이 가능한 수치해석 절차를 개발하였다. 윤축의 구속조건식과 강체 동역학 방정식을 Runge-Kutta 방법을 이용하여 수치적분을 수행하였다. 제안된 윤축 동역학 해석 결과는 VI-RAIL을 이용한 해석결과와 비교 분석하여 타당성을 검증하였다. 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." @default.
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- W2076248520 date "2012-02-26" @default.
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- W2076248520 title "A Three Dimensional Wheelset Dynamic Analysis considering Wheel-rail Two Point Contact" @default.
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- W2076248520 doi "https://doi.org/10.7782/jksr.2012.15.1.001" @default.
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