中国铁道科学2025，Vol.46Issue(3)：1-10,10.DOI:10.3969/j.issn.1001-4632.2025.03.01
400km·h-1及以上速度下高速铁路弓网接触力及燃弧分析
Analysis of Pantograph-Catenary Contact Force and Arcing on High-Speed Railways at Speeds of 400 km·h-1 and Above
摘要
Abstract
To study the pantograph-catenary current collection performance of a 350 km·h-1 speed level overhead contact system operating at speeds of 400 km·h-1 and above under existing design standards,a vehicle-pantograph-air multi physics field coupling model was established based on finite element method with the consideration of aerodynamic effect using a bidirectional fluid structure coupling algorithm.On the basis of comparing the simulation results of incompressible and compressible flow fields,the time-domain variation trend and frequency-domain distribution characteristics of pantograph-catenary contact force were studied.Based on the experimental data of high-speed pantograph-catenary contact force,arcing rate,arcing frequency,and maximum arcing duration in specific sections,the relationship between contact force fluctuations and arcing rate growth trend was analyzed,to propose optimization measures for reducing contact force fluctuations and arcing generation.The results show that the existing 350 km·h-1 speed level overhead contact system can meet the normal operation of the high-speed train at a speed of 400 km·h-1;at high speeds,the simulation results under compressible flow fields are more in line with reality;compared with a speed of 350 km·h-1,at a speed of 420 km·h-1,the average contact force of the pantograph increases by about 23%,the standard deviation of the contact force increases by about 103%,the variance increases by about 312%,and the high-frequency component above 20 Hz increases by about 3%-8%.Moreover,the variance of the contact force of the pantograph-catenary is consistent with the measured increase trend of the arcing rate,indicating that the fluctuation of the contact force at high speeds is the main reason for the increase in arcing phenomenon;To reduce the fluctuation of contact force at speeds of 400 km·h-1 and above,it is recommended to develop higher speed pantographs,adopt intelligent active control technology,and optimize the dynamic performance of the catenary.关键词
空气动力学/弓网受流性能/可压缩流场/弓网接触力/燃弧Key words
Aerodynamics/Pantograph-catenary current collection performance/Compressible flow field/Pantograph-catenary contact force/Arcing分类
交通工程引用本文复制引用
王同军,韩通新,孔龙飞,宋诗扬..400km·h-1及以上速度下高速铁路弓网接触力及燃弧分析[J].中国铁道科学,2025,46(3):1-10,10.基金项目
中国国家铁路集团有限公司科技研究开发计划课题(P2021G053) （P2021G053）
