周伟

个人信息Personal Information

教授

博士生导师

硕士生导师

教师英文名称:David Zhou

教师拼音名称:zhouwei

出生日期:1982-09-08

入职时间:2013-01-14

所在单位:极端流动力能前沿科学中心

职务:实验室副主任

学历:博士研究生毕业

办公地点:中南大学铁道校区高速列车研究中心203办公室

性别:男

联系方式:联系电话:0731-82655294 Email: gszx_zhouwei@csu.edu.cn 或 zhou_wei000@126.com 或 124575608@qq.com

学位:工学博士学位

在职信息:在职

主要任职:博士生导师,学硕/ 专硕导师

其他任职:世界交通运输大会(WTC)轨道交通学部轨道交通装备系统科学“机车车辆”技术委员会 联合主席

毕业院校:中南大学

学科:交通运输工程

论文成果

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Load identification and fatigue evaluation via wind-induced attitude decoupling of railway catenary

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影响因子:3.364

DOI码:10.1515/rams-2021-0037

发表刊物:Reviews on Advanced Materials Science

关键字:: load identification, stress calculation, railway catenary, attitude decoupling, fatigue damage evaluation

摘要:In strong wind area, wind vibration on key railway catenary components may lead to safety hidden danger like fatigue failures. In this work, a load identification approach was proposed by decoupling the windinduced suspension attitude to acquire the hard-to-get environmental wind load and evaluate the catenary fatigue damage on railway catenary. In theoretical modeling, mechanical relation between wind load and registration displacement is formulated in pure lateral and vertical loading by finite element analysis. Wind load is identified via suspension attitude decoupling into displacement under individual load. Nodal forces, as the external load acting on catenary connections between supporting beams, are further correlated with the identified wind load to calculate the structural stress of catenary components. In experiment, visual detection is used to measure the wind-induced attitude of catenary suspension in wind area, where maximum wind speed climbs up to 41 m/s. Experimental results are transferred into wind loads and nodal forces using the proposed model. Stress spectra and fatigue damage evaluation of connection components are carried out adopting the rain-flow counting method and damage accumulation rule.

备注:JCR-Q2

卷号:60

期号:1

页面范围:377-403

是否译文:

发表时间:2021-08-23