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

doi:10.1016/j.ijfatigue.2021.106221

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	A segmented load spectrum model for high-speed trains and its inflection stress as an indicator for line quality
	Yuan, Zheng 1; Chen, Xianjia 3; Ma, Lijun 1,2; Li, Qiang 1; Sun, Shouguang 1; Wei, Yujie 3
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	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
DOI	10.1016/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.
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关键词	BOGIE FRAME ; FATIGUE DAMAGE ; CRACK-GROWTH ; PREDICTION ; 2324-T39 ; BEHAVIOR ; LIFE
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
内容类型	期刊论文
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
通讯作者	Li, Qiang; Wei, Yujie
作者单位	1.Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China 2.CRRC Qingdao Sifang Co Ltd, Qingdao 266111, Peoples R China 3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Zheng,Chen, Xianjia,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,Chen, Xianjia,Ma, Lijun,Li, Qiang,Sun, Shouguang,&Wei, Yujie.(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.