Effect of the Rail Support Stiffness on the Occurrence Propensity of Rail Corrugation Based on the Self-excited Vibration of a Wheel-Rail System

Abstract. In order to effectively prevent and control the generation and development of rail corrugation, according to the actual line condition of the small radius curve section, the vehicle (with flexible wheel sets)–track space coupled model was established by using the multi-body dynamic software UM (Universal Mechanism), which could consider the coupled relationship in three directions of space, and the dynamic analysis for the corrugation section was carried out by using the model. Then, based on the theory of friction self-excited vibration, the three-dimensional model of a wheel–rail system was established by using the finite-element software ABAQUS, and the complex eigenvalue analysis of influence factors of rail corrugation was conducted based on wheel–rail contact parameters obtained by dynamic calculation. Through the stability analysis of the wheel–rail system with different fastener vertical and lateral stiffnesses, friction coefficients, and superelevation states, we find that properly increasing the fastener vertical and lateral stiffnesses, controlling the wheel–rail friction coefficient below 0.4, and keeping the balanced superelevation state of the track structure can effectively reduce the occurrence possibility of unstable vibration of the wheel–rail system, thus inhibiting the generation and development of rail corrugation. The excess superelevation state of the track structure results in the unstable friction self-excited vibration of the wheel–rail system at the inner wheel–inner rail, while the deficient superelevation state results in the unstable friction self-excited vibration of the wheel–rail system at the outer wheel–outer rail, which shows that the superelevation state of the track structure directly affects the formation of rail corrugation and determines the development order of corrugation of inner and outer rails. This conclusion can well explain the cause of corrugation appearing on only one side rail.

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Investigation into rail corrugation in high-speed railway tracks from the viewpoint of the frictional self-excited vibration of a wheel–rail system

Journal of Modern Transportation ◽

10.1007/s40534-016-0106-6 ◽

2016 ◽

Vol 24 (2) ◽

pp. 124-131 ◽

Cited By ~ 1

Author(s):

G. X. Chen ◽

X. L. Cui ◽

W. J. Qian

Keyword(s):

High Speed ◽

High Speed Railway ◽

Rail Corrugation ◽

Railway Tracks ◽

Rail System ◽

Excited Vibration

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Friction-Induced Vibration of a Railway Wheelset-Track System and Its Effect on Rail Corrugation

Lubricants ◽

10.3390/lubricants8020018 ◽

2020 ◽

Vol 8 (2) ◽

pp. 18

Author(s):

Guangxiong Chen

Keyword(s):

Finite Element ◽

Finite Element Model ◽

Element Model ◽

The Self ◽

3D Finite Element ◽

Rail Corrugation ◽

Track System ◽

Excited Vibration ◽

Creep Force ◽

Friction Induced Vibration

In the present study, the effect of the radius of railway curved tracks on the slip of a wheel on a rail is studied. A 3D finite-element model of a wheelset-track system is established when the creep force between the wheel and rail is saturated. The occurrence propensity of the self-excited vibration of the wheelset-track system is predicted. It is concluded that the radius of curved tracks has a strong effect on the slip of wheels on rails. In the tightly curved tracks, the slip of the wheel of the leading wheelset on the rail always occurs. The wheelset-track system has a strong occurrence propensity for unstable vibrations on the tightly curved tracks. The accuracy of the rail corrugation prediction based on the unstable vibrations of wheelset-track systems is determined to be 85–90% or higher.

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Field measurement and model prediction of rail corrugation

Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit ◽

10.1177/0954409719877318 ◽

2019 ◽

Vol 234 (4) ◽

pp. 381-392 ◽

Cited By ~ 1

Author(s):

GX Chen ◽

S Zhang ◽

BW Wu ◽

XN Zhao ◽

ZF Wen ◽

...

Keyword(s):

Finite Element ◽

Field Test ◽

Model Prediction ◽

Field Measurement ◽

The Self ◽

Finite Element Models ◽

Rail Corrugation ◽

Track System ◽

Excited Vibration ◽

Good Agreement

In a field test, three corrugation profiles of rails and their corresponding vibrations were measured, and the wavelengths and frequencies of rail corrugations were obtained. In the model prediction, finite-element models of the self-excited vibrations corresponding to three different wheelset–track systems were established. The corrugation frequencies of these models were predicted, and a comparison between the measured and the predicted corrugation frequencies showed that they are in good agreement. It can be concluded that the self-excited vibration of a wheelset–track system can cause rail corrugation. A benchmark condition for the validation of rail corrugation models is proposed.

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Study on the effects of wheel-rail friction self-excited vibration and feedback vibration of corrugated irregularity on rail corrugation

Wear ◽

10.1016/j.wear.2021.203854 ◽

2021 ◽

pp. 203854

Author(s):

Xiaolu Cui ◽

Zhiqiang He ◽

Bo Huang ◽

Yuanchang Chen ◽

Zixue Du ◽

...

Keyword(s):

Rail Corrugation ◽

Excited Vibration

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The Investigation of the Influence of Structure Parameters on the Friction-Induced Self-Excited Vibration

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.66-68.933 ◽

2011 ◽

Vol 66-68 ◽

pp. 933-936

Author(s):

Xian Jie Meng

Keyword(s):

Nonlinear Dynamics ◽

Numerical Method ◽

Calculation Result ◽

Dry Friction ◽

Vibration Amplitude ◽

The Self ◽

Structure Parameters ◽

Dynamics Model ◽

Excited Vibration ◽

Nonlinear Dynamics Model

A one degree of freedom nonlinear dynamics model of self-excited vibration induced by dry-friction was built firstly, the numerical method was taken to study the impacts of structure parameters on self-excited vibration. The calculation result shows that the variation of stiffness can change the vibration amplitude and frequency of the self-excited vibration, but can not eliminate it, Along with the increase of system damping the self-excite vibration has the weakened trend and there a ritical damping, when damping is greater than it the self-excite vibration will be disappeared.

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Analysis of the self-excited vibration and dynamics modification for rolling mills

2010 IEEE 11th International Conference on Probabilistic Methods Applied to Power Systems ◽

10.1109/pmaps.2010.5528838 ◽

2010 ◽

Author(s):

Xiong Xiaoyan ◽

Xiong Shibo ◽

Chen Dongbing ◽

Wang Ranfeng

Keyword(s):

The Self ◽

Rolling Mills ◽

Excited Vibration

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Improved Analysis of Unstable Bouncing Vibration and Stabilizing Design of Flying Slider in Near-Contact Regime

World Tribology Congress III, Volume 1 ◽

10.1115/wtc2005-63612 ◽

2005 ◽

Author(s):

Kyosuke Ono ◽

Masami Yamane

Keyword(s):

Parametric Study ◽

Adhesion Force ◽

Design Method ◽

Contact Stiffness ◽

Frictional Coefficient ◽

Disk Surface ◽

The Self ◽

Air Bearing ◽

Excited Vibration ◽

Bearing Stiffness

We proposed a design method of a flying head slider that can suppress the bouncing vibration in a near-contact regime, based on parametric study using an improved slider and contact models. At first, we numerically calculated the characteristics of contact force and adhesive force between air bearing pad and disk surface under the current small roughness conditions and found that the contact characteristics can be modeled by constant contact stiffness, a constant adhesion force and the separations of beginning and end of contact. Next we numerically computed the slider dynamics of a 2-DOF slider model by using these contact characteristics and nonlinear air-bearing stiffness. As a result, we could get the self-excited bouncing vibration whose general characteristics are more similar to the experimented results compared to our previous study. Parametric study shows that the frictional coefficient, attractive force and contact stiffness should be decreased and front and rear air-bearing stiffness and ratio of rear to front air-bearing stiffness should be increased in order to realize a stable flying slider in a smallest possible spacing. Moreover, we elucidated the effect of micro-waviness on the self-excited vibration of the slider.

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