Hybrid predictions of railway induced ground vibration using a combination of experimental measurements and numerical modelling

Kuo, Kirsty; Verbraken, Hans; Degrande, Geert; Lombaert, Geert

doi:10.1016/j.jsv.2016.03.007

Cited by 54 publications

(27 citation statements)

References 21 publications

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“…Such hybrid prediction models use the information obtained from measurements to improve the accuracy of numerical models, while at the same time providing the flexibility of numerical models to assess a wide range of rolling stock, track and soil parameters. Kuo et al [142] used such a hybrid empirical-numerical methodology to assess different track arrangements and determine the effect of the installation of mitigation measures within the propagation path for the case of a railway at grade. In a similar concept, Kourousis et al [143] presented an alternative to the FRA method [14] that can be used to assess the effect of localized rail defects and provide ground vibration predictions in the time domain.…”

Section: Semi-empirical Methodsmentioning

confidence: 99%

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Thompson

Kouroussis

Ntotsios

2019

Vehicle System Dynamics

136

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There is a great need to develop rail networks over long distances and within cities as more sustainable transport options. However, noise and vibration are seen as a negative environmental consequence. Compared with airborne noise, the related problem of ground vibration is much more complex. The properties of the ground vary significantly from one location to another. There is no common assessment criterion or measurement quantity and no equivalent to the noise maps. Ground-borne vibration is transmitted into buildings and perceived either as feelable whole-body vibration or as low frequency noise; it can also affect sensitive equipment but it is generally at a level that is too low to cause structural or cosmetic damage to buildings. A review is given of evaluation criteria for both feelable vibration and ground-borne noise, empirical and numerical prediction methods, the main vehicle and track parameters that can affect the vibration levels and a range of possible mitigation methods.

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Section: Semi-empirical Methodsmentioning

confidence: 99%

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Thompson

Kouroussis

Ntotsios

2019

Vehicle System Dynamics

136

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“…A recent development in predicting railway vibration levels involves the use of hybrid models that combine field measurements with state-of-the-art numerical techniques, thus partially avoiding the need for simplifying modelling assumptions and detailed parameter identification. A hybrid modelling formulation for free field vibrations is described in Kuo et al [11], which uses separate source and propagation terms that can be quantified using either numerical modelling or field measurements. To extend this modelling approach to encompass the entire vehicle-track-soil-building system, a receiver term can be included that characterises the dynamic interaction of a building with railway induced vibrations.…”

Section: Introductionmentioning

confidence: 99%

The coupling loss of a building subject to railway induced vibrations: Numerical modelling and experimental measurements

Kuo

Παπαδόπουλος

Lombaert

et al. 2019

Journal of Sound and Vibration

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Railway induced vibrations can be amplified or attenuated as they propagate through the foundations, floors and spans of nearby buildings. This change in vibration level, known as the building's coupling loss, is often accounted for in vibration predictions using generic, frequency independent adjustment factors. In this paper, a detailed investigation is conducted to identify methods for determining the coupling loss in new build scenarios and to investigate its dependence on various system parameters. Using the approach of separate source, propagation and receiver terms, the coupling loss is characterised as the difference between vibration velocity levels measured inside and outside the building. Three different configurations of the railway-soil-building are explored: the case where both track and building are present; the case of a new building; and the case of a new railway. In situ experiments of a building subject to excitation from nearby train passages and hammer impacts on the track are used to quantify the building response. The influence of the location of the sensors in the free field and in the building (both within a single floor and across multiple storeys) is investigated. The findings from the experimental study supports separate characterisation of the source and receiver terms, thus demonstrating that the railway can be represented by a series of on-track impacts when determining the building's coupling loss. Using this representation, a 3D building model is used to investigate the effect of dynamic soil characteristics, surface foundation type, and building geometry on the building's response to railway induced vibrations.

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“…Nielsen et al 16 developed a hybrid model for predicting ground-borne vibrations due to discrete wheel and rail irregularities. Kuo et al 17 used a combination of field measurements and a numerical method to predict railway-induced ground vibrations. Galvı et al 18 proposed a novel 2.5D methodology in which the FE method was combined with a BE method for the prediction of railway induced vibrations.…”

Section: Introductionmentioning

confidence: 99%

“…Kuo et al. 17 used a combination of field measurements and a numerical method to predict railway-induced ground vibrations. Galvı et al.…”

Section: Introductionmentioning

confidence: 99%

Model for predicting the vibrations of historical timber buildings due to traffic loads and its experimental validation

Zhang

2019

Journal of Low Frequency Noise, Vibration and Active Control

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This study established the transfer laws of vibration waves in a linear system under simple harmonic loading. Then, a method based on multipoint delivery in the frequency domain was proposed to predict the vibrations of historical timber buildings induced by traffic loads, in which the transfer function between two delivery points of different single frequencies is obtained. Finally, the vibration responses of the Feiyun pavilion induced by traffic loads were predicted and compared with experimental field test results. The results indicate that the predicted vibration responses and experimental field tests at the measurement point in the Feiyun pavilion correspond well in the concerned frequency bands and that the proposed prediction method can be used to predict the structural vibration responses under the influence of complex traffic loads.

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Hybrid predictions of railway induced ground vibration using a combination of experimental measurements and numerical modelling

Cited by 54 publications

References 21 publications

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

The coupling loss of a building subject to railway induced vibrations: Numerical modelling and experimental measurements

Model for predicting the vibrations of historical timber buildings due to traffic loads and its experimental validation

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