铁道科学与工程学报2026，Vol.23Issue(4)：1497-1510,14.DOI:10.19713/j.cnki.43-1423/u.T20250939
基于实测数据的高铁道岔区轮轨作用性能研究
Research on the performance of wheel-rail interaction in high-speed railway turnouts based on measured data
摘要
Abstract
To reveal the performance of the wheel-rail interaction in the turnouts on high-speed railways,the measurement of wheel-rail forces and track irregularity on a selected turnout was studied in the time and frequency domains in relation to running speed and operating time.The distribution characteristics of track irregularity,wheel-rail force and vehicle stability indicators were analyzed,and the main energy bands of wheel-rail interaction in the special turnouts such as switches and crossing noses were clarified.The generalized energy of wheel-rail force in the frequency range of 0～400 Hz was introduced to characterize speed-varying and time-varying characteristics.The results show that the standard deviation of track profile and alignment,the derailment coefficient,and the lateral wheel-axle force vary insignificantly with speed.However,the wheel-load reduction rate changes rapidly within the speed range of 260～350 km/h,whereas it remains relatively constant within the speed range of 350～380 km/h.The generalized energy of the left wheel-rail vertical force near the switch rail and the right wheel-rail vertical force near the crossing nose increases rapidly with speed.In contrast,the wheel-rail lateral forces change slightly with the speed,and the former increases at a rate about five times greater than the latter.As the service time of the turnout increases,the standard deviation of the profile and alignment first decreases and then increases.Meanwhile,the wheel-load reduction rate and the lateral wheel-axle force first increase,then decrease,and finally increases genthy.The generalized energy of the wheel-rail lateral and vertical forces increases.Near the switch and crossing nose,it first decreases within 0～17 months after railway operation,and then slowly increases between 21 and 38 months.The generalized energy of the wheel-rail forces in the right rail near the No.2 and No.4 joints decrease within 0～9 months,and stabilize slightly within 10～20 months,then increases again within 21～38 months.The research can provide a detailed reference for the wheel-rail performance in the turnouts in the interaction mechanisms,the service status,management,maintenance and treatment,etc.关键词
高速铁路道岔/轮轨力/小波变换/广义能量/速变、时变特性Key words
high-speed railway switch/wheel-rail force/wavelet transform/generalized energy/speed and time-varying characteristics分类
交通工程引用本文复制引用
牛留斌,孙鹏田,田新宇..基于实测数据的高铁道岔区轮轨作用性能研究[J].铁道科学与工程学报,2026,23(4):1497-1510,14.基金项目
国铁集团重大课题项目(K2024T006) （K2024T006）
