A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph-Catenary System
Joint Authors
Gao, Q.
Zhong, W. X.
He, Dongdong
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-03
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
Based on the finite element method (FEM), the parametric variational principle (PVP) is combined with a numerical time-domain integral method to simulate the dynamic behavior of the pantograph-catenary system.
Based on PVP, formulations for the nonlinear droppers in the catenary and for the contact between the pantograph and the contact wire are proposed.
The formulations can accurately determine the tension state or compression state of the nonlinear droppers and the contact state between the pantograph and the contact wire.
Based on the periodicity of the catenary and the precise integration method (PIM), a numerical time-integration method is developed for the dynamic responses of the catenary.
For this method, the matrix exponential of only one unit cell of the catenary is computed, which greatly improves the computational efficiency.
Moreover, the validation shows that the formulations can compute the contact force accurately and represent the nonlinearity of the droppers, which demonstrates the accuracy and reliability of the proposed method.
Finally, the dynamic behaviors of the pantograph-catenary system with different types of catenaries are simulated.
American Psychological Association (APA)
He, Dongdong& Gao, Q.& Zhong, W. X.. 2018. A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph-Catenary System. Shock and Vibration،Vol. 2018, no. 2018, pp.1-21.
https://search.emarefa.net/detail/BIM-1215424
Modern Language Association (MLA)
He, Dongdong…[et al.]. A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph-Catenary System. Shock and Vibration No. 2018 (2018), pp.1-21.
https://search.emarefa.net/detail/BIM-1215424
American Medical Association (AMA)
He, Dongdong& Gao, Q.& Zhong, W. X.. A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph-Catenary System. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-21.
https://search.emarefa.net/detail/BIM-1215424
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215424