The hunting stability is an important issue for vehicle systems that determines the maximum operating speeds of the high-speed trains. In this paper, the research background for the three abnormal vibration phenomena of the high-speed trains caused by the hunting stability problems, including the “VIP Chair Shaking,” “Bogie Alarm,” and “Carbody Sway” problems, are introduced. Firstly, the reason why the vehicle hunting motion loses its stability is investigated from the viewpoint of wheel/rail contact relation. Then, a modified wheel profile is recommended in order to solve or relieve the stability problem, in which the slope at the flange root for the original wheel profile is decreased and the slope at the wheel tread end is increased. Furthermore, the numerical model for a high-speed passenger car is established to verify the dynamic performance of the modified wheel profile. Finally, the dynamic test for the vehicle equipped with the modified wheels is carried out using full-scale roller test rig to validate the theoretical analysis. It can be seen from simulations and validation tests that the wheel/rail contact relation and the dynamic performance including the hunting stability and ride comfort for the high-speed vehicle with the modified wheel are improved significantly compared with the original wheel.
AlejandroBMariaTRHiginioR, et al. (2023) On the nonlinear hunting stability of a high-speed train bogie. Nonlinear Dynamics111(3): 2059–2078.
2.
ChangCDingXLingL, et al. (2023) Mechanism of high-speed train carbody shaking due to degradation of wheel-rail contact geometry. International Journal of Reality Therapy11(3): 289–316.
3.
ChenXWYaoYShenLJ, et al. (2022) Multi-objective optimization of high-speed train suspension parameters for improving hunting stability. International Journal of Reality Therapy10(2): 159–176.
4.
ChiMRZengJWuPB, et al. (2016) An optimization design method for the wheel tread of a high-speed train. CN, CNIPA, G06F 17/50 (2006.01).
5.
DaiXLQuSHuangCH, et al. (2023) The determination of limit wheel profile for hunting instability of railway vehicles using stacking feature deep forest. Engineering Applications of Artificial Intelligence125: 106732.
6.
DingXChangCLingL, et al. (2023) Mechanism analysis of low-frequency swaying motion of high-speed trains induced by aerodynamic loads. Journal of Vibration and Control0(0): 1–13.
7.
GanF (2010) Study on Wheel-Rail Contact Relationship of High-Speed Railway Vehicle. Chengdu, China: Southwest Jiaotong University. PHD thesis.
8.
GanFDaiHYLuoGB, et al. (2021) Analysis method of hunting frequency for flexible bogies of railway vehicles. Journal of Dalian Jiaotong University42(1): 1–8.
9.
GePHWeiXKLiuJZ, et al. (2020) Bifurcation of a modified railway wheelset model with nonlinear equivalent conicity and wheel-rail force. Nonlinear Dynamics102(1): 79–100.
10.
GongDLiuGYZhouJS (2021) Research on mechanism and control methods of carbody chattering of an electric multiple-unit train. Multibody System Dynamics53(2): 135–172.
11.
GuoZTChiMRSunJF, et al. (2023) Experimental and numerical research on the bogie hunting of a high-speed train caused by the empty stroke of yaw damper. Vehicle System Dynamics08: 1637–1657.
12.
KiriakosKFassoisSDSakellariouJS, et al. (2021) On the problem of on-board early detection of hunting on rail vehicles: an exploratory study. IFAC Papers On Line54-20: 191–197.
LiYYRenZSEnblomR, et al. (2020) Wheel wear prediction on a high-speed train in China. Vehicle System Dynamics58(12): 1839–1858.
15.
LiYSDaiHYQiYU, et al. (2023a) Experimental study of bogie instability monitoring and suppression measures for high-speed EMUs. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit237(4): 1260–1272.
16.
LiWGuanQHChiMR, et al. (2022) An investigation into the influence of wheel–rail contact relationships on the carbody hunting stability of an electric locomotive. Proc. IMechE, Part F: J. Rail and Rapid Transit236(10): 1198–1209.
17.
LiYXChiMRGuoZT, et al. (2023b) An abnormal carbody swaying of intercity EMU train caused by low wheel–rail equivalent conicity and damping force unloading of yaw damper. Railway Engineering Science31(3): 252–268.
18.
LiangYRZengJWangQS, et al. (2023) Dynamic performance study of railway vehicle on half-vehicle roller rig. International Journal of Dynamics and Control11(2): 473–481.
19.
LuoRShiHLTengWX, et al. (2017) Prediction of wheel profile wear and vehicle dynamics evolution considering stochastic parameters for high-speed train. Wear392-393: 126–138.
20.
PolachO (2010) Characteristic parameters of nonlinear wheel/rail contact geometry. Vehicle System Dynamics48: 19–36.
21.
PolachONicklischD (2016) Wheel/rail contact geometry parameters in regard to vehicle behaviour and their alteration with wear. Wear366-367: 200–208.
22.
SharmaSKKumarA (2016) Dynamics analysis of wheel rail contact using FEA. Procedia Engineering144: 1119–1128.
23.
SunJFChiMRJiaWD, et al. (2022) Modal parameters-based hunting stability analysis of high-speed railway vehicles considering full range of equivalent conicity. Proceedings of the Institution of Mechanical Engineers - Part K: Journal of Multi-body Dynamics236(3): 146441932211032.
24.
SunJFJiaoWDJiangYH, et al. (2023) Hunting frequency variation mechanism and its effect on carbody hunting stability for railway vehicles. Acta Mechanica Sinica39: 523046.
25.
WangQSZengJWuY, et al. (2020) Study on semi-active suspension applied on carbody underneath suspended system of high-speed railway vehicle. Journal of Vibration and Control26: 1–9.
26.
WangCTDaiHYWangJB, et al. (2023b) Experimental and simulation study on the effect of different wheel profiles on the dynamics and wheel wear of high-speed trains. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit237(8): 1025–1036.
27.
WangDYNingJZhaoF, et al. (2023a) A small-amplitude hunting motion recognition method based on transfer learning. Journal of Vibration and Control29(19-20): 4384–4395.
28.
WangQSZengJMaoRC, et al. (2023c) Parameters optimum of multiple underframe suspended equipment on high-speed railway vehicle carbody vibration control by using an improved genetic algorithm. Journal of Vibration and Control11(2): 473–481.
29.
WangQSZengJWeiL, et al. (2024) Experimental and numerical investigation on multi-module coupling vibration performance of light rail vehicle. Journal of Vibration Engineering & Technologies12: 745–756.
30.
WeiLZengJChiMR, et al. (2017) Carbody elastic vibrations of high-speed vehicles caused by bogie hunting instability. Vehicle System Dynamics55(9): 1321–1342.
31.
WeiLZengJHuangCH, et al. (2024) Hunting stability and dynamic stress analysis of a high-speed bogie using elastic-suspended motors as dynamic vibration absorber. Vehicle System Dynamics04, Jan: 1–23. DOI: 10.1080/00423114.2023.2289654.
32.
WuYZengJQuS, et al. (2020) Low-frequency carbody sway modelling based on low wheel-rail contact conicity analysis. Shock and Vibration2020: 1–17.
33.
XieYCCaiWBLiYX, et al. (2024) A case study of the economic reprofiling method for a high-speed train’s wheel tread in the frequent contact area. WearWEA 205244: 1–35. DOI: 10.1016/j.wear.2024.205244.
34.
YaoYLiGWuGS, et al. (2019) Suspension parameters optimum of high-speed train bogie for hunting stability robustness. International Journal of Reality Therapy8(3): 195–214.
35.
YeYGVuittonJSunY, et al. (2021) Railway wheel profile fine-tuning system for profile recommendation. Railway Engineering Science29(1): 74–93.
