The influences of rail vibration absorber on normal wheel–rail contact forces due to multiple wheels

Abstract

A compound track-absorber model with multiple wheels on the rail is employed to study the effects of a rail absorber on the normal wheel–rail contact forces in the frequency domain. Two different absorber models, which are the piecewise continuous absorber and the discrete absorber installed in the middle of the sleeper span, are presented. It can be seen from the calculation results that there are more peaks occurring in the frequency range of 500–1200 Hz due to the wave reflections between the wheels than that of a single wheel–rail interaction. However, these peaks are all suppressed due to the effects of the rail absorber, and there are new peaks appearing at other frequencies while the amplitude of these peaks is relatively small. The peaks in contact force at low frequencies are higher, whereas the peak at pinned-pinned resonance is suppressed.

Keywords

Normal contact force rail absorber rail damper multiple wheel–rail interaction

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References

Ahmad

Thompson

Jones

CJC

(2009) Predicting the effect of temperature on the performance of elastomer based rail damping devices. Journal of Sound and Vibration 322(4–5): 674–689.

Croft

Jones

CJC

Thompson

(2009) Modelling the effect of rail dampers on wheel–rail interaction forces and rail roughness growth rates. Journal of Sound and Vibration 323(1–2): 17–32.

Grassie

Kalousek

(1993) Rail corrugation: characteristics, causes and treatments. Journal of Rail and Rapid Transit 207(1): 57–68.

Grassie

Gregory

Harrison

(1982) The dynamic response of railway track to high frequency vertical excitation. Journal of Mechanical Engineering Science 24(2): 77–90.

Hempelmann

Knothe

(1996) An extended linear model for the prediction of short pitch corrugation. Wear 191(1–2): 161–169.

Hempelmann

Hiss

Knothe

(1991) The formation of wear patterns on rail tread. Wear 144(1–2): 179–195.

Igeland

(1996) Railhead corrugation growth explained by dynamic interaction between track and bogie wheelset. Journal of Rail and Rapid Transit 210(1): 11–20.

Liu

(2009) Theoretical modelling and effectiveness study of rail vibration absorber for noise control. Journal of Sound and Vibration 323(3–5): 594–608.

Maes

Sol

(2003) A double tuned rail damper increased damping at the two first pinned-pinned frequencies. Journal of Sound and Vibration 267(3): 721–737.

10.

Moghaddas

Esmailzadeh

Sedaghati

(2012) Vibration control of Timoshenko beam traversed by moving vehicle using optimized tuned mass damper. Journal of Vibration and Control 18(6): 757–773.

11.

Nielsen

(1999) Evolution of rail corrugation predicted with a nonlinear wear model. Journal of Sound and Vibration 227(5): 915–933.

12.

Thompson

Jones

CJC

Waters

(2007) A tuned damping device for reducing noise from railway track. Applied Acoustics 68(1): 43–57.

13.

(2008) On the railway track dynamic with rail vibration absorber for noise reduction. Journal of Sound and Vibration 309(3–5): 739–755.

14.

(2011) Effects on short pitch rail corrugation growth of a rail vibration absorber/damper. Wear 271(1–2): 339–348.

15.

Thompson

(2001) Vibration analysis of railway track with multiple wheels on the rail. Journal of Sound and Vibration 239(1): 69–97.

16.

Thompson

(2002) Behaviour of the normal contact force under multiple wheel/rail interaction. Vehicle System Dynamics 37(3): 157–174.

17.

Thompson

(2005) An investigation into rail corrugation due to micro-slip under multiple wheel/rail interactions. Wear 258(7–8): 1115–1125.