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A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality

文献类型：期刊论文

作者Yuan, Zheng3; Chen XJ(陈贤佳)2; Ma, Lijun1,3; Li, Qiang3; Sun, Shouguang3; Wei YJ(魏宇杰)2
刊名INTERNATIONAL JOURNAL OF FATIGUE
出版日期2021-07-01
卷号148页码:12
关键词Load spectrum Segmented Weibull distribution Bogie frame High-speed train Inflection stress
ISSN号0142-1123
DOI10.1016/j.ijfatigue.2021.106221
通讯作者Li, Qiang(qli3@bjtu.edu.cn) ; Wei, Yujie(yujie_wei@lnm.imech.ac.cn)
英文摘要Load spectrum plays a pivotal role for fault diagnosis and reliability evaluation. Here we performed long-term field tests to investigate the characteristics of load spectra of the bogie frame in a high-speed train. With increasing steps of classifications, we reveal an apparent segmented feature of the load spectrum. We propose a new theoretical model, a segmented Weibull distribution, to describe this new characteristic. Contrast to existing models, the inflection stress in our segmented Weibull model can be employed to describe the quality of lines, and the directly parameterization for the load spectrum - line quality relationship is hardly seen in existing literature. These findings reported here are in generally applicable to other dynamic systems where fatigue failure is of paramount importance.
分类号一类
WOS关键词BOGIE FRAME ; FATIGUE DAMAGE ; CRACK-GROWTH ; PREDICTION ; 2324-T39 ; BEHAVIOR ; LIFE
资助项目National Key Research and Development Program of China[2017YFB0202800] ; NSFC Basic Science Center for 'Multiscale Problems in Nonlinear Mechanics'[11988102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020200] ; CAS Center for Excellence in Complex System Mechanics
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000647439300001
资助机构National Key Research and Development Program of China ; NSFC Basic Science Center for 'Multiscale Problems in Nonlinear Mechanics' ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Center for Excellence in Complex System Mechanics
其他责任者Li, Qiang ; Wei, Yujie
源URL[http://dspace.imech.ac.cn/handle/311007/86696]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.CRRC Qingdao Sifang Co Ltd, Qingdao 266111, Peoples R China
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
3.Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China;
推荐引用方式
GB/T 7714		 Yuan, Zheng,Chen XJ,Ma, Lijun,et al. A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality[J]. INTERNATIONAL JOURNAL OF FATIGUE,2021,148:12.
APA Yuan, Zheng,陈贤佳,Ma, Lijun,Li, Qiang,Sun, Shouguang,&魏宇杰.(2021).A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality.INTERNATIONAL JOURNAL OF FATIGUE,148,12.
MLA Yuan, Zheng,et al."A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality".INTERNATIONAL JOURNAL OF FATIGUE 148(2021):12.

入库方式： OAI收割

来源：力学研究所

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