Ground-Borne Vibration Mitigation Measures for Turnouts: State-of-the-Art and Field Tests

Müller, Roger; Nielsen, Jens C. O.; Nelain, Brice; Zemp, Armin

doi:10.1007/978-3-662-44832-8_64

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…In some cases, the results using the grillage beam method seem to have discrepancies with the field observations where the maximum bending and shear forces were evident within the crossing panel [16][17][18][19]. A number of researches have been conducted to locate the critical section within a turnout, and many of which conclude that the critical section is located specifically at the crossing panel [20][21][22][23].…”

Section: Finite Element (Fe) Modellingmentioning

confidence: 97%

Nonlinear Finite Element Modelling of Railway Turnout System considering Bearer/Sleeper-Ballast Interaction

Siew

Mirza

Kaewunruen

2015

Journal of Structures

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Rail turnouts are built to enable flexibility in the rail network as they allow for vehicles to switch between various tracks, therefore maximizing the utilisation of existing rail infrastructure. In general, railway turnouts are a safety-critical and expensive feature to a rail system as they suffer aggressive operational loads, in comparison to a plain rail track, and thus require frequent monitoring and maintenance. In practice, great consideration is given to the dynamic interaction between the turnouts components as a failed component may have adverse effects on the performance of neighbouring components. This paper presents a nonlinear 3D finite element (FE) model, taking into account the nonlinearities of materials, in order to evaluate the interaction and behaviour of turnout components. Using ABAQUS, the finite element model was developed to simulate standard concrete bearers with 60 kg/m rail and with a tangential turnout radius of 250 m. The turnout structure is supported by a ballast layer, which is represented by a nonlinearly deformable tensionless solid. The numerical studies firstly demonstrate the importance of load transfer mechanisms in the failure modes of the turnout components. The outcome will lead to a better design and maintenance of railway turnouts, improving public safety and operational reliability.

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Section: Finite Element (Fe) Modellingmentioning

confidence: 97%

Nonlinear Finite Element Modelling of Railway Turnout System considering Bearer/Sleeper-Ballast Interaction

Siew

Mirza

Kaewunruen

2015

Journal of Structures

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“…In order to reduce the excessive levels of vibration that may be generated at railway crossings several empirical mitigation strategies have been proposed based on improved crossing designs [1], or installing vibration abatement measures on the track [2,3]. Although the prediction of ground-borne vibration due to railway crossings is important for identifying ways to tackle unacceptable levels of vibration from existing as well as future railway lines, most studies that address wheel-rail interaction for complex rail profiles such as the crossing rail geometry are only focused on the prediction of wear and rolling-contact fatigue, rather than ground vibration.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Ground-Borne Vibration Generated at Railway Crossings Using a Hybrid Model

Ntotsios

Kostovasilis

Thompson

et al. 2021

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Railway crossings are an important source of localized ground vibration. Models are required for identifying ways to tackle unacceptable levels of vibration from existing as well as future railway lines. Yet, the use of a prediction model that directly allows for the non-Hertzian wheel-rail contact dynamics and also includes three dimensional calculations of the ground response would be computationally expensive. In order to reduce the computational cost without affecting the accuracy of the predictions, a hybrid approach is proposed for the prediction of ground-borne vibration due to impacts at railway crossings. The approach combines the simulation of the vertical wheel-rail contact force in the time domain and the prediction of ground vibration levels in the far field using a linear wavenumber-frequency-domain approach. The proposed hybrid approach is used to investigate the influence of different vehicle speeds, crossing designs and wheel profiles on predicted ground vibration levels in the free field.

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Wheel–Rail Impact Loads, Noise and Vibration: A Review of Excitation Mechanisms, Prediction Methods and Mitigation Measures

Nielsen

Pieringer

Thompson

et al. 2021

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Ground-Borne Vibration Mitigation Measures for Turnouts: State-of-the-Art and Field Tests

Cited by 6 publications

References 1 publication

Nonlinear Finite Element Modelling of Railway Turnout System considering Bearer/Sleeper-Ballast Interaction

Nonlinear Finite Element Modelling of Railway Turnout System considering Bearer/Sleeper-Ballast Interaction

Prediction of Ground-Borne Vibration Generated at Railway Crossings Using a Hybrid Model

Wheel–Rail Impact Loads, Noise and Vibration: A Review of Excitation Mechanisms, Prediction Methods and Mitigation Measures

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