Influence of high-frequency vibrations on the wheel-rail creep curve at high speeds

被引:2
|
作者
Yin, Shan [1 ]
Zhao, Xin [1 ]
Huang, Shuangchao [1 ]
Wen, Zefeng [1 ]
Jin, Xuesong [1 ]
机构
[1] Southwest Jiaotong Univ, State Key Lab Rail Transit Vehicle Syst, Chengdu 610031, Peoples R China
基金
中国国家自然科学基金;
关键词
High-speed railway; Transient wheel-rail rolling contact; High-frequency vibrations; Creep curve; Explicit FE method; FINITE-ELEMENT MODEL; ROLLING-CONTACT; CORRUGATION; SIMULATION; EXPLICIT; IMPACT; TRACK; COEFFICIENTS; VALIDATION; GROWTH;
D O I
10.1016/j.wear.2023.205161
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Quasi-steady and transient rolling contact of a driving wheelset over tangent and curved tracks at a speed up to 500 km/h is simulated using an explicit finite element approach to derive creep curves. Quasi-steady curves corresponding to smooth wheel and rail are compared to those from traditional theories implying the steady rolling assumption for validation. Transient curves in the presence of rail corrugation with a wavelength of 10 similar to 1000 mm are further analyzed to study the influence of middle/high-frequency vibrations. Cases where transient effects must be considered or traditional theories are inapplicable are identified.
引用
收藏
页数:11
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