Validation and Analysis on Numerical Response of Super-High-Speed Railway Pantograph-Catenary Interaction Based on Experimental Test

• Published in: Shock and vibration Vol. 2021; no. 1
• Main Authors: Yang, Jia, Song, Yang, Lu, Xiaobing, Duan, Fuchuan, Liu, Zhigang, Chen, Ke
• Format: Journal Article
• Language: English
• Published: Cairo Hindawi 2021; John Wiley & Sons, Inc; Wiley
• Subjects: Accuracy; Analysis; Collectors; Deer hunting; Field tests; High speed rail; High speed trains; Inspection; Literature reviews; Mathematical analysis; Mathematical models; Multibody systems; Numerical analysis; Pantographs; Propagation; Railroads; Simulation; Simulation methods; Wire; China
• ISSN: 1070-9622; 1875-9203
• DOI: 10.1155/2021/9922404

The numerical tools can be used to facilitate the design of the railway pantograph-catenary system. The validation of the current numerical results is mostly performed at a speed slower than 350 km/h. This paper aims at the validation and analysis of the numerical results at a super-high-speed. The catenary model is constructed based on a nonlinear finite element approach employing the absolute nodal coordinate formulation. A multibody dynamics model is adopted to represent the pantograph. The measurement data are collected by an inspection vehicle equipped with an instrumented pantograph operating at 378 km/h in Chengdu-Chongqing high-speed line. Comparing the numerical simulation and the field test shows that the present pantograph-catenary model can provide reliable numerical results at 378 km/h. The numerical analysis of pantograph-catenary interaction at super-high-speed shows that the trailing pantograph performance does not comply with the assessment standard at 378 km/h. The adjustment of double-pantograph interval and messenger wire tension can effectively improve the trailing pantograph performance.