Measurements and Analyses of Curve Squeal of Embedded Track and Fastener Track

doi:10.3901/JME.2023.06.194

Abstract

Abstract: The embedded track, as a kind of vibration-reducing and noise-reducing track, can increase the damping of the wheel-rail system by wrapping of the polymer material. Testing and analyzing the curve squeal when 100% low floor tram passing through the small radius curve of embedded track and the traditional fastener system track. The radius of the test curve is 50 m, and the test speed is 5-15 km /h. The test results show that when a tram passes the traditional fastener system, the squeal noise of the inner wheel of the guide wheel set (the first wheel set) is the most significant. The mechanism is that the (0, 2) axial modal vibration of wheel at 960 Hz is generated by the transverse creep slip between the wheel and the rail, thus generating intense single-frequency vibration and squeal. Compared with the traditional fastener system, the embedded track can suppress the curve squeal. In order to further reveal the mechanism of suppressing curve squeal of embedded track structure. A 3D wheel-rail contact FEM model was established, it is found that the coupling modal damping is greatly affected by the track structure damping. Changing the track structure damping can effectively improve the wheel-rail coupling modal damping, and improving the transverse damping in the track structure parameters is the most effective way to suppress the curve squeal.

Key words: curve squeal, tram, embedded track, wheel-rail contact model

CLC Number:

U270

HE Yuanpeng, HAN Jian, CHEN Peng, DONG Bonan, XIAO Xinbiao, SHENG Xiaozhen. Measurements and Analyses of Curve Squeal of Embedded Track and Fastener Track[J]. Journal of Mechanical Engineering, 2023, 59(6): 194-203.

References

[1] THOMPSON D J. Railway noise and vibration:Mechanisms,modelling and means of control[M]. Oxford:Elsevier Science,2013.
[2] MULLER B,OERTLI J. Combating curve squeal:Monitoring existing applications[J]. Journal of Sound and Vibration,2006,293(3-5):728-734.
[3] RUDD M J. Wheel/rail noise-Part II:Wheel squeal[J]. Journal of Sound and Vibration,1976,46(3):381-394.
[4] GLOCKER C,CATALDI-SPINOLA E,LEINE R I. Curve squealing of trains:Measurement,modelling and simulation[J]. Journal of Sound and Vibration,2009,324(1-2):365-386.
[5] VINCENT N,KOCH J R,CHOLLET H,et al. Curve squeal of urban rolling stock-Part 1:State of the art and field measurements[J]. Journal of Sound & Vibration,2006,293(3):691-700.
[6] RUITEN C J M V. Mechanism of squeal noise generated by trams[J]. Journal of Sound and Vibration,1988,120(2):245-253.
[7] ROECK G,DEGRANDE G,LOMBAERT G,et al. Experimental investigation on squeal noise in tramway sharp curves[C]//International Conference on Structural Dynamics,2011:4-6.
[8] EADIE D T,SANTORO M,KALOUSEK J. Railway noise and the effect of top of rail liquid friction modifiers:Changes in sound and vibration spectral distributions in curves[J]. Wear,2005,258(7-8):1148-1155.
[9] EADIE D T,SANTORO M,POWELLl W. Local control of noise and vibration with KELTRACK™ friction modifier and Protector^® trackside application:An integrated solution[J]. Journal of Sound and Vibration,2003,267(3):761-772.
[10] EADIE D T,SANTORO M. Top-of-rail friction control for curve noise mitigation and corrugation rate reduction[J]. Journal of Sound and Vibration,2004,293(3):747-757.
[11] 赵悦,何远鹏,韩健,等. 有轨电车曲线啸叫噪声试验分析[J]. 机械工程学报,2019,55(10):133-141. ZHAO Yue,HE Yuanpeng,HAN Jian,et al. Measurements and analyses of curve squeal caused by tram[J]. Journal of Mechanical Engineering,2019,55(10):133-141.
[12] SHENG Xiaozhen,Li M,Jones C J C,et al. Using the Fourier-series approach to study interactions between moving wheels and a periodically supported rail[J]. Journal of Sound and Vibration,2007,303(3-5):873-894.
[13] LING Liang,HAN Jian,XIAO Xinbiao,et al. Dynamic behavior of an embedded rail track coupled with a tram vehicle[J]. Journal of Vibration and Control,2015:1077546315616521.
[14] Van Lier S. The vibro-acoustic modelling of slab track with embedded rails[J]. Journal of Sound and Vibration,2000,231(3):805-817.
[15] BRUNEL J F,DUFRÉNOY P,NAÏT M,et al. Transient models for curve squeal noise[J]. Journal of Sound and Vibration,2006,293(3-5):758-765.