Sensitivity analysis of free vibration characteristics of an in situ railway concrete sleeper to variations of rail pad parameters

Kaewunruen, Sakdirat; Remennikov, Alexander

doi:10.1016/j.jsv.2006.05.034

Cited by 129 publications

(90 citation statements)

References 8 publications

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“…The influence of rail pad on the vibration and flexural modes of the sleeper was investigated by Kaewunruen et al [14] with results showing a relation between the rail pad stiffness and the bending mode with generally high stiffness of rail pad, reducing translation and rotational modes. Results also showed that most damage occurs to the sleepers in the resonant frequencies due to the modes of vibration.…”

Section: Selected Parametersmentioning

confidence: 99%

Suppression of Ground Borne Vibration Induced by High-Speed Lines

et al. 2018

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Abstract. Vibration of high-speed lines leads to annoyance of public and lowering real estate values near the railway lines. This hinders the development of railway infrastructures in urbanised areas. This paper investigates the vibration response of an isolated rail embankment system and modifies the component to better attenuate ground vibration. Mainly velocity response is used to compare the responses and the applied force is of 20 kN at excitation frequencies of 5.6 Hz and 8.3 Hz. Focus was made on ground-borne vibration and between the frequency range of 0 and 250 Hz. 3D Numerical model was made using SolidWork software and frequency response was produced using Harmonic Analysis module from ANSYS Workbench software. For analytical modelling MATLAB was used along with Simulink to verify the mathematical model. This paper also compares the vibration velocity decibels (VdB) of analytical twodegree of freedom model mathematical model with literature data. Harmonic excitation is used on the track to simulate the moving load of train. The results showed that modified analytical model gives the velocity response of 75 VdB at the maximum peak. Changes brought to the mass and spacing of the sleeper and to the thickness and the corresponding stiffness for the ballast does not result in significant vibration response. Limitations of two-degree analytical model is suspected to be the cause of this inactivity. But resonance vibration can be reduced with the aid of damping coefficient of rail pad. Statistical analysis methods t-test and ANOVA single factor test was used verify the values with 95% confidence.

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Section: Selected Parametersmentioning

confidence: 99%

Suppression of Ground Borne Vibration Induced by High-Speed Lines

et al. 2018

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“…For impact simulations, a FE model was extended to include rails, rail pads, ballast bed, and falling mass, as shown is Figure 4. The extended finite element model was calibrated using vibration data [13][14][15][16]. The updated finite element model was then transferred to LS-Dyna.…”

Section: Prestressing Wiresmentioning

confidence: 99%

Impact Responses of Prestressing Tendons in Railway Concrete Sleepers in High Speed Rail Environments

Kaewunruen¹,

Remennikov²

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…The dynamic lateral resistance of the sleeper has been studied to better understand the interaction zones between the sleeper and the ballast layer [5]. Kaewunruen S. [23] researched the influence of the rail pad on the free vibration of the concrete sleeper by using finite element analysis. By using experimental and numerical methods, Laryea et al [4] compared the sleeper's perfomance when made out of different materials.…”

Section: Introductionmentioning

confidence: 99%

Analytical Model of the Dynamics of Railway Sleeper

Tran¹,

Hoang²,

Forêt³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. The periodically supported beam is an analytical model of the dynamics of a railway track, where each rail together with its supports (sleepers) is independent of the other one. However, the sleepers connect the two rails and their behaviour could influence the response. This study develops an analytical model for this type of track by considering the sleepers as EulerBernoulli beams resting on a visco-elastic foundation. By using a relation between the reaction forces and displacement of the periodically supported beam [1], we can obtain a dynamic equation of a sleeper based on Dirac delta distribution. Then, the response of the sleepers can be obtained by using the Green function. This model is a fast method to calculate the dynamic responses of railway sleepers and track.

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Sensitivity analysis of free vibration characteristics of an in situ railway concrete sleeper to variations of rail pad parameters

Cited by 129 publications

References 8 publications

Suppression of Ground Borne Vibration Induced by High-Speed Lines

Suppression of Ground Borne Vibration Induced by High-Speed Lines

Impact Responses of Prestressing Tendons in Railway Concrete Sleepers in High Speed Rail Environments

Analytical Model of the Dynamics of Railway Sleeper

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