噪声与振动控制2025，Vol.45Issue(6)：52-56,5.DOI:10.3969/j.issn.1006-1355.2025.06.009
高速铁路长大下坡制动段钢轨波磨控制方法研究
Rail Corrugation Control Methods in Long Downhill Braking Section of High-speed Track
摘要
Abstract
Based on the friction self-excited vibration theory,the control methods of rail corrugation in the long downhill braking section of the high-speed track were studied.Firstly,the finite element model of the wheel-rail-braking system of the CRH5 high-speed train was established.Then,the friction self-excited vibration characteristics of the whole system were studied by using the complex eigenvalue method.And,the influences of brake friction coefficient,wheel-rail friction coefficient and fastener structure parameters on the friction self-excited vibration of the whole system were studied by using the control variable method.The results show that in the long downhill braking section of the high-speed track,the friction self-excited vibration caused by wheel-rail friction and brake friction in the wheel-rail-braking system induces rail corrugation.With the increase of brake friction coefficient and wheel-rail friction coefficient,the possibility of friction self-excited vibration of the whole system increases,and the influence of wheel-rail friction coefficient is more obvious.The rail corrugation can be suppressed by reducing brake friction coefficient and wheel-rail friction coefficient in the long downhill braking section of the high-speed track.When the vertical fastener stiffness is 60 MN/m,rail corrugation can be effectively inhibited.With the increase of the vertical fastener damping,the friction self-excited vibration of the whole system gradually decreases.Increasing the vertical fastener damping can restrain rail corrugation in the long downhill braking section of high-speed track.关键词
振动控制/钢轨波磨/摩擦自激振动/复特征值分析/高速铁路/制动Key words
vibration control/rail corrugation/friction self-excited vibration/complex eigenvalue analysis/high-speed track/brake分类
交通工程引用本文复制引用
李少鹏,尹越,唐传平,崔晓璐..高速铁路长大下坡制动段钢轨波磨控制方法研究[J].噪声与振动控制,2025,45(6):52-56,5.基金项目
国家自然科学基金面上资助项目(52275176) （52275176）
重庆市基础研究与前沿探索资助项目(CSTB2022NSCQ-MSX1542),轨道交通基础设施性能检测与保障国家重点实验室开放课题资助项目(HJGZ2021115) （CSTB2022NSCQ-MSX1542）
