Investigation of the vibration isolation performance of floating slab track with rubber bearings using a stochastic fractional derivative model

Yuan, Xuancheng; Zhu, Shengyang; Xu, Lei; Zhai, Wanming; Li, Huailong

doi:10.1177/0954409719883552

Cited by 14 publications

(11 citation statements)

References 25 publications

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“…[21] Xu [20] Liu et al [17], Jia et al [18] High resilient rail fastener Fang et al [19] Twin-block booted sleepers Gao et al [22], He and Yang [23] Ladder sleeper track Yan et al [25], Jin et al [26] Ma et al [27] Xia et al [24] FST with steel spring Ma et al [3], Zhai et al [28], Ding et al [29] Ma et al [3], Liu et al [17], Jia et al [18] FST with rubber bearing Yuan et al [30] FST + tuned slab damper/mass block Xu [20], Zhu et al [31,32],…”

Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

“…Multi rows of piles exhibit a better ability to mitigate vibrations due to their periodic arrangement. In recent years, it is FST with rubber bearing Yuan et al [30] FST + tuned slab damper/mass block Xu [20], Zhu et al [31,32],…”

Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

“…Table 1 summarizes existing research on different types of vibration-isolating tracks. The elastic element can be inserted under the rail [17][18][19][20][21], the sleeper [22][23][24][25][26][27], and the whole slab track [3,17,18,[28][29][30]. The track's natural frequency decreases with the decrease of the elastic element stiffness or increase in floating masses above the elastic elements.…”

Section: Introductionmentioning

confidence: 99%

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Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Jiang

Liu

et al. 2020

Sustainability

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Laboratories with sensitive instruments need a low-vibration environment. It is a challenge to control the train-induced vibration impact on these instruments when a newly planned metro line is adjacent to a laboratory building. An alternative method of mitigating train-induced ground vibrations involves installing measures along the transmission path. Recent research has highlighted the potential of periodic pile barriers with specifically designed band gaps for controlling environmental vibrations. This study performed in-situ measurements of ambient vibrations inside and outside a laboratory containing various types of sensitive instruments and located adjacent to a newly designed metro line. The vibration transfer function of the laboratory was then obtained. To help design and optimize the band gaps of periodic piles, a novel band gap performance evaluation function was proposed. Finally, numerical analysis was conducted to validate the mitigation effect of the designed periodic piles. The results showed that the band gap performance evaluation function can be used to optimize the mitigation effect of periodic piles. The proposed periodic piles clearly attenuated vibrations between 52.4 and 74.3 Hz, especially those at 63 Hz. A comparison of general vibration criteria (VC) curves revealed that vibration attenuation of one level can be obtained by the designed periodic piles.

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Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Jiang

Liu

et al. 2020

Sustainability

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“…Wei et al described the dynamic viscoelasticity and plasticity of a Vossloh 300 soft rail pad with a modified fractional derivative Zener (FDZ) model and a traditional Berg friction model, and analyzed the influence on the high-speed vehicle–slab-track coupled vibration [ 18 ]. Zhu et al proposed a stochastic fractional derivative (SFD) model for simulating the dynamic behavior of rubber bearings in the FST [ 19 ]. Cezary et al tested the frequency dependence of UBM and used an FDZ model to evaluate its insertion loss in a two-layer reference system [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation Method of the Vibration Reduction Effect Considering the Real Load- and Frequency-Dependent Stiffness of Slab-Track Mats

et al. 2021

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The purpose of this research was to investigate and improve the accuracy of the existing slab-track mat (STM) specifications in the evaluation of the vibration reduction effect. The static nonlinearity and dynamic mechanical characteristics of three types of STMs were tested, and then a modified fractional derivative Poynting–Thomson (FDPT) model was used to characterize the preload and frequency dependence. A modified vehicle–floating slab track (FST) coupled dynamic model was established to analyze the actual insertion loss. The insertion loss error evaluated by the frequency-dependent tangent stiffness increased with the increase in STM nonlinearity, and the error obtained by the third preload tangent stiffness was usually greater than that of the second preload. Compared with the secant stiffness, the second preload frequency-dependent tangent stiffness was more suitable for evaluating STMs with high-static–low-dynamics (HSLD) stiffness. In order to reflect the frequency dependence effect and facilitate engineering applications, it is recommended that second preload tangent stiffness corresponding to the natural frequency of the FST be used for evaluation. Furthermore, the insertion loss of the STMs with monotonically increased stiffness decreased as the axle load increased, and the opposite was true for the STMs with monotonically decreased stiffness. The vibration isolation efficiency of the STMs with HSLD stiffness was both stable and better than that of the STMs with monotonic stiffness.

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“…Szurgott and Bernyś [23] used the superposition principle to simulate the nonlinear vibration reduction behaviour of a rubber gasket of a fastener system, and they found out that the nonlinear dynamic stiffness of the rubber pad was related to the displacement amplitude and frequency. Yuan et al [24] introduced the stochastic fractional derivative model into a vehicle-floating slab track coupled dynamics model to investigate the vibration isolation performance of the floating slab track with rubber bearings.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Sliding of WJ‐8 Small Resistance Fastener Composite Pad

Zeng

Wang

Fushan

et al. 2020

Advances in Civil Engineering

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Under long-term temperature loading, long bridges stretch and deform, causing the beam and rail to move relative to each other. This phenomenon could cause a gradual slide of the rail relative to the fastener composite pad and ultimately results in the slipping out of the fastener pad at the end of the ballastless track bridge changes. The slipping out of the fastener composite pad changes the longitudinal resistance of the fastener and causes shock of the train on the rail structure due to direct contact between the rail and the tie, thus inhibiting the normal use of the line. In this paper, a reciprocating tensile test was carried out on a WJ-8 small resistance fastener to explore the breaking process of the fastener composite pad, identify the interaction mechanism of the fastener composite pad under the rail, and ultimately determine the influence of the pad on the longitudinal resistance of the fastener. The results show that the two factors that affect the longitudinal resistance of the fastener under reciprocating loading are the surface roughness and displacement of the fastener composite pad. While the surface roughness of the fastener composite pad is the main influencing factor in the early stage, the displacement of the composite pad has a greater impact on the later stage. The research results of this paper can provide an important reference for the maintenance and repair of ballastless track fasteners on bridges.

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Investigation of the vibration isolation performance of floating slab track with rubber bearings using a stochastic fractional derivative model

Cited by 14 publications

References 25 publications

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Evaluation Method of the Vibration Reduction Effect Considering the Real Load- and Frequency-Dependent Stiffness of Slab-Track Mats

Experimental Study on the Sliding of WJ‐8 Small Resistance Fastener Composite Pad

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