TY - JOUR
T1 - A practical three-dimensional wheel-rail interaction element for dynamic response analysis of vehicle-track systems
AU - Liu, Yongdou
AU - Montenegro, Pedro A.
AU - Gu, Quan
AU - Guo, Wei
AU - Calçada, Rui
AU - Pombo, João
N1 - Funding Information:
The authors would like to thank Dr. Vollebregt from the Delft University of Technology for his help on the creepage validation. The authors would like to express their gratitude to Dr. Yong Li from the University of Alberta for his help on the 3D WRI element development. This work is financially supported by the National Key Research and Development Program of China under Grant No. [2016YFC0701106], China's National Science Foundation through Grant Nos. [51261120376], [51978591] and [51578473]. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the sponsors. The contribution of P. Montenegro and R. Cal?ada was supported by Foundation from Science and Technology through CONSTRUCT Programmatic Funding [UIDP/04708/2020] and through Grant No. [2020.00305.CEECIND]. The contribution of J. Pombo to this work was supported by FCT, through IDMEC, under LAETA, project UIDB/50022/2020.
Funding Information:
The authors would like to thank Dr. Vollebregt from the Delft University of Technology for his help on the creepage validation. The authors would like to express their gratitude to Dr. Yong Li from the University of Alberta for his help on the 3D WRI element development. This work is financially supported by the National Key Research and Development Program of China under Grant No. [2016YFC0701106], China's National Science Foundation through Grant Nos. [51261120376], [51978591] and [51578473]. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the sponsors. The contribution of P. Montenegro and R. Calçada was supported by Foundation from Science and Technology through CONSTRUCT Programmatic Funding [UIDP/04708/2020] and through Grant No. [2020.00305.CEECIND]. The contribution of J. Pombo to this work was supported by FCT, through IDMEC, under LAETA, project UIDB/50022/2020.
Publisher Copyright:
© 2021 Elsevier Ltd
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/10/1
Y1 - 2021/10/1
N2 - A novel practical three-dimensional (3D) wheel-rail interaction (WRI) element is developed to simulate the interaction between a fast-moving wheel node and nodes of the rail. Different from most previous methods of wheel-rail contact in multibody dynamics, the wheel-rail relationship in this paper is simulated by the WRI element. The WRI element is implemented into a general finite element software framework (i.e., OpenSees), which allows us study not only the vehicle behavior as the multibody models allow, but also the structure behavior with any degree of complexity. Implemented in a FEM framework with strong nonlinear capabilities, it also allows us to study scenarios with important nonlinearities. Compared to most existing models, the WRI element has a better compatible property and can be easily added to the vast majority of finite element platforms. The wheel-rail contact geometry is calculated efficiently with wheel/rail profiles fitted through linear curves and contact locations solved through algorithms with a higher efficiency. Local curvatures around contact points are calculated differently to avoid discontinuities of the contact force. Movements of a wheelset and of a train are studied to verify the accuracy and capability of the WRI element in the dynamic simulation of vehicle-track systems.
AB - A novel practical three-dimensional (3D) wheel-rail interaction (WRI) element is developed to simulate the interaction between a fast-moving wheel node and nodes of the rail. Different from most previous methods of wheel-rail contact in multibody dynamics, the wheel-rail relationship in this paper is simulated by the WRI element. The WRI element is implemented into a general finite element software framework (i.e., OpenSees), which allows us study not only the vehicle behavior as the multibody models allow, but also the structure behavior with any degree of complexity. Implemented in a FEM framework with strong nonlinear capabilities, it also allows us to study scenarios with important nonlinearities. Compared to most existing models, the WRI element has a better compatible property and can be easily added to the vast majority of finite element platforms. The wheel-rail contact geometry is calculated efficiently with wheel/rail profiles fitted through linear curves and contact locations solved through algorithms with a higher efficiency. Local curvatures around contact points are calculated differently to avoid discontinuities of the contact force. Movements of a wheelset and of a train are studied to verify the accuracy and capability of the WRI element in the dynamic simulation of vehicle-track systems.
KW - Finite element method
KW - Flange-contact
KW - Railway dynamic
KW - Vehicle-track system
KW - Wheel-rail interaction
UR - http://www.scopus.com/inward/record.url?scp=85107633997&partnerID=8YFLogxK
U2 - 10.1016/j.compstruc.2021.106581
DO - 10.1016/j.compstruc.2021.106581
M3 - Article
AN - SCOPUS:85107633997
VL - 254
JO - Computers and Structures
JF - Computers and Structures
SN - 0045-7949
M1 - 106581
ER -