A nonlinear and fractional derivative viscoelastic model for rail pads in the dynamic analysis of coupled vehicle–slab track systems

Zhu, Shengyang; Cai, Chengbiao; Spanos, Pol D.

doi:10.1016/j.jsv.2014.09.034

Cited by 95 publications

(34 citation statements)

References 35 publications

(16 reference statements)

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“…However, the authors were not focused on non-linear region small force excitation was applied in the studied and linear region behavior is assumed in the study. The non-linear frequency dependent properties of rubber mount were studied by Sjoberg et al and Zhu et al in both experiment and simulation [10] [11]. However, authors only focused their studied in low frequency range which is in between 0 Hz to 100 Hz.…”

Section: Introductionmentioning

confidence: 99%

Experimental Identification On Non Linear Properties of Rubber Mount

Zainudin

Ooi

2018

MATEC Web Conf.

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In actual installation, rubber mount are usually excited by different engine force amplitude and frequency. For better characterization of rubber mount, dynamic properties of metal to rubber mount are tested in this paper by using hysteresis loop method. Stiffness and loss factor of rubber mount are calculated from measured hysteresis loop. Experimental works are carried to identify the non-linearity in the amplitude dependent and frequency dependent properties of rubber mount. the s-shaped of hysteresis loop represent as non-linear behavior of rubber mount. the comparison is done for the dynamic properties of rubber mount under different excitation condition. the non-linear behavior of the rubber mount under excitation forced are reported. the result show stiffness change non-linearly according to different amplitude excitation force under different excitation frequency. the observation is significant especially when the excitations force is higher than 5N for the small metal to the rubber mounts. However this observation is different compared to the condition where excitation frequency getting higher. the non-linearity in the rubber mount is becoming not significant when the excitation frequency is getting higher.

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Section: Introductionmentioning

confidence: 99%

Experimental Identification On Non Linear Properties of Rubber Mount

Zainudin

Ooi

2018

MATEC Web Conf.

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“…The lumped parameter models cannot simulate the dynamic response of the track structure [46,64]. The continuous and discrete beam models can provide more accurate predictions of the behaviour of all the track components, including the rails, the fastenings, the sleepers, the slabs and even the ballast [43,46,64,70].…”

Section: Track Modelling Methods In Ttbdimmentioning

confidence: 99%

“…In addition, some parameters are different with those in the design stage due to the long-term operation, hence relevant experiments should be conducted to obtain the evolved parameters. For instance, to accurately investigate the responses of the 7-span Sesia viaduct subjected to both ambient vibration and the excitation of Italian ETR500Y high-speed trains, a situ test was carried out to obtain the modal properties of the bridge by Liu et al [70]. To estimate the mechanical properties to be used for numerical analyses of railway bridges, Rauert et al [114] performed tests on railway ballast within the framework of the European research project DETAILS (Design for optimal life cycle costs of high-speed railway bridges by enhanced monitoring systems).…”

Section: Field Test For Validating Train-track-bridge Dynamic Modelmentioning

confidence: 99%

Train–track–bridge dynamic interaction: a state-of-the-art review

Zhai

Han

Chen

et al. 2019

Vehicle System Dynamics

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292

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Train-track-bridge dynamic interaction is a fundamental concern in the field of railway engineering, which plays an extremely important role in the optimal design of railway bridges, especially in high-speed railways and heavy-haul railways. This paper systematically presents a state-of-the-art review of train-track-bridge dynamic interaction. The evolution process of train-bridge dynamic interaction model is described briefly, from the simplest moving constant force model to the sophisticated train-track-bridge dynamic interaction model (TTBDIM). The modelling methodology of the key elements in the TTBDIM is systematically reviewed, including the train, the track, the bridge, the wheel-rail contact, the track-bridge interaction, the system excitation and the solution algorithm. The significance of detailed track modelling in the whole system is highlighted. The experimental research and filed test focusing on modelling validation, safety assessment and long-term performance investigation of the train-track-bridge system are briefly presented. The practical applications of train-track-bridge dynamic interaction theory are comprehensively discussed in terms of the system dynamic performance evaluation, the system safety assessment and train-induced environmental vibration and noise prediction. The guidance is provided on further improvement of the train-track-bridge dynamic interaction model and the challenging research topics in the future. ARTICLE HISTORY

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“…There are several experiments in order to verify the validity of the infinite element method [8]- [15].…”

Section: Mathematic Modelmentioning

confidence: 99%

Model Study and Fault Detection for the Railway System

Rawia¹,

Tlijani²,

Knani³

2017

ijacsa

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Abstract-The wheel-rail-sleepers system is simulated as a series of moving point loads on an Euler-Bernoulli beam resting on a visco-elastic half space. This paper concentrates on the railsleepers interaction system (railway system) and the fault detection. The main objective is to mathematically develop and implement a dynamic model of a railway system then the diagnosis of system defects using a Luenberger observer (LO). The simulation results are based on a physical description, mathematical equations and simulations with MATLAB simulation program.

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A nonlinear and fractional derivative viscoelastic model for rail pads in the dynamic analysis of coupled vehicle–slab track systems

Cited by 95 publications

References 35 publications

Experimental Identification On Non Linear Properties of Rubber Mount

Experimental Identification On Non Linear Properties of Rubber Mount

Train–track–bridge dynamic interaction: a state-of-the-art review

Model Study and Fault Detection for the Railway System

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