Wheel-rail impact at an insulated rail joint in an embedded rail system

Yang, Zhen; Zhang, Pan; Wang, Li

doi:10.1016/j.engstruct.2021.113026

Cited by 17 publications

(6 citation statements)

References 39 publications

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“…Chiba [ 28 ] proposed a numerical simulation method for the wheel-rail system contact problem using fuzzy logic and predicted the resonance noise in the wheel-rail contact process of rail transit. Yang [ 29 ] studied the wheel-rail collision problem of insulated track joints used in embedded track systems both numerically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

Vibration and Noise Analysis and Experimental Study of Rail Conveyor

Hao

Sun

Zhang

et al. 2023

Sensors

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The rail conveyor is a new type of energy-saving system for the long-distance transportation of bulk materials. Operating noise is an urgent problem that the current model faces. It will cause noise pollution and affect the health of workers. In this paper, the factors causing vibration and noise are analyzed by modeling the wheel-rail system and the supporting truss structure. Based on the built test platform, the system vibration of the vertical steering wheel, the track support truss, and the track connection were measured, and the vibration characteristics at different positions were analyzed. Based on the established noise and vibration model, the distribution and occurrence rules of system noise under different operating speeds and fastener stiffness conditions were obtained. The experimental results show that the vibration amplitude of the frame near the head of the conveyor is the largest. The amplitude under the condition of 2 m/s running speed at the same position is 4 times that under the condition of 1 m/s. At different welds of the track, the width and depth of the rail gap have a great influence on the vibration impact, which is mainly due to the impact of the uneven impedance at the track gap, and the greater the running speed, the more obvious the vibration impact. The simulation results show the trend of noise generation, the speed of the trolley, and the stiffness of the track fasteners have a positive effect on the generation of noise in the low-frequency region. The research results of this paper will play an important role in the noise and vibration analysis of rail conveyors and help to optimize the structure design of the track transmission system.

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Section: Introductionmentioning

confidence: 99%

Vibration and Noise Analysis and Experimental Study of Rail Conveyor

Hao

Sun

Zhang

et al. 2023

Sensors

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“…The elastic compound provides homogeneous continual support to the rail, differing from periodic sleeper support in the traditional ballast track. With design benefits such as noise reduction and savings in construction height and weight [1], ERS also has wide applications in bridges, tunnels, and tramlines [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Optimal design of rail level crossings and associated transition zones using adaptive surrogate-assisted optimization

Shang

Nogal

Teixeira

et al. 2023

Engineering Structures

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“…Mandal carried out systematic studies on ratcheting failure of IRJs subject to cyclic wheel loadings, with detailed contact stress distribution visualised through sub-modelling and FE simulations [5][6][7][8]. Numerical simulations have also been adopted by Yang et al to study the influence of wheel rail impact at IRJs [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Insulated rail joint (IRJ) contact characterisation-an ultrasonic reflectometry approach for a cross-material interface

Zhou

Luo

Lewis

2023

Smart Mater. Struct.

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Vehicle-track interaction at insulated rail joints (IRJs) plays a significant role in the wear evolvement and damage of the IRJ components. It is, however, challenging to characterise the contact conditions within the region non-destructively and accurately using experimental tools, especially when the IRJ contact involves both wheel-rail and wheel-endpost contact pairs. This study presents an ultrasonic technique to monitor and characterise static IRJ contacts in a non-invasive manner. The proposed ultrasonic reflectometry technique can realise high-resolution visualisation of contact patch and contact pressure distribution for both wheel-rail contact and wheel-endpost contact, by striking a beam of focused ultrasonic signals at the contact interface. Different data post-processing strategies are applied for the two types of contacts and a deconvolution algorithm is applied to rectify the measurements near the railendpost boundary. The ultrasonic measurements are verified through FE simulations and the results show good agreement with each other in terms of both contact area and contact pressure level. It is expected that the proposed ultrasonic approach can be a reliable tool to assist in revealing the contact behaviour of IRJs more profoundly.

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Wheel-rail impact at an insulated rail joint in an embedded rail system

Cited by 17 publications

References 39 publications

Vibration and Noise Analysis and Experimental Study of Rail Conveyor

Vibration and Noise Analysis and Experimental Study of Rail Conveyor

Optimal design of rail level crossings and associated transition zones using adaptive surrogate-assisted optimization

Insulated rail joint (IRJ) contact characterisation-an ultrasonic reflectometry approach for a cross-material interface

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