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Review and prospect of maintenance technology for traction system of high-speed train

Transportation Safety and Environment 2021年第3期3卷 196-215页

作者： Shaolong Xu Chunyang Chen Zhenjun Lin Xiao Zhang Jisheng Dai Liangjie Liu School of Traffic and Transportation Engineering Central South UniversityChangshaHunan 410075China Zhuzhou CRRC Times Electric Co. Ltd.ZhuzhouHunan 412001China College of Mechanical and Vehicle Engineering Hunan UniversityChangshaHunan 410082China Zhuzhou CRRC Times Electric UK Innovation Center 2650 Kings CourtB377YEBirmingham

In the past few decades,high-speed trains have witnessed tremendous and vigorous development with the appearance of the oil crisis and industrialization,which became a significant trend in the transportation industry the world *** the increase of high-speed railway mileage,the amount of high-speed train has grown sharply,the service life of the trains has increased gradually and the components of the vehicle traction system have become worn and aged as a ***,advanced maintenance technology and its application are key factors to reduce maintenance cost,human resource input and ensure safe,stable and reliable operation of *** paper summarizes and discusses the development,application mode,maintenance management and maintenance technology of high-speed railways of the major countries in the world,especially discusses the condition-based maintenance and the key technology of the traction electrical system,and offers the prospect of research direction and the development of traction maintenance technology.

关键词： high-speed railway traction system maintenance technology condition assessment life prediction condition-based maintenance Prognostic and health management(PHM)

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Disease Characteristics and maintenance technology of Highway Subgrade and Pavement

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Journal of Architectural Research and Development 2022年第3期6卷 54-60页

作者： Yuan Yin China Merchants Chongqing Communications technology Research&Design Institute Co. LTD.Chongqing 400067China

In recent years,the subgrade and pavement diseases account for the vast majority of the expressway maintenance diseases,which puzzles many expressway maintenance departments and *** sustain the continuous development of the expressway,the service level of the expressway is need to be improved,by ensuring the safety of the people,and by providing more convenient services for the people during *** technical measures for scientific maintenance of expressway subgrade and pavement diseases were discussed in this ***,this paper discusses the main subgrade and pavement diseases types,and proposed the targeted maintenance methods,which can be as a reference for the expressway maintenance departments.

关键词： Expressway Subgrade and pavement Disease characteristics maintenance technology

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