西南交通大学学报2018，Vol.53Issue(3)：610-619,10.DOI:10.3969/j.issn.0258-2724.2018.03.024
高速接触网零部件失效问题研究现状及展望
Research and Prospect on High-Speed Catenary Component Failure
摘要
Abstract
The failure of catenary components seriously affects the operational safety of a catenary system,and the reliability of the catenary system provides an important foundation for the safe operation of trains and railway lines. In order to promote the development of high-speed catenary equipment technology,the typical failures and causes of catenary components were systematically summarised and analysed based on the results of field research,including the wear of aluminium-alloy positioning hooks and supports,fatigue of droppers,bolt loosening,slipping of terminal anchoring clamps,and corrosion of parts. It was noted that fretting damage(fretting wear and fretting fatigue) and poor working conditions were the main factors behind the failure of catenary components. Then, the research status of fretting wear,fretting fatigue,bolt loosening,and stress corrosion in China and abroad were introduced. Moreover,research prospects were proposed for the damage mechanism of impact-sliding wear,fretting fatigue of multi-wire strands,bolt loosening,fatigue damage under the condition of current-carrying and corrosion fatigue,and the importance of a high current for studying damage was indicated.关键词
接触网/微动损伤/失效/研究展望Key words
catenary/fretting damage/failure/research prospect分类
机械制造引用本文复制引用
谭德强,莫继良,彭金方,罗健,陈维荣,朱旻昊..高速接触网零部件失效问题研究现状及展望[J].西南交通大学学报,2018,53(3):610-619,10.基金项目
国家自然科学基金资助项目(U1534209) （U1534209）
中国铁路总公司科技研究开发计划重点课题(2015J005-D) （2015J005-D）
