Vertical track irregularity analysis of high-speed railways on simply-supported beam bridges based on the virtual track inspection method

Gao, Tianci; Cong, Jianli; Wang, Ping; Liu, Jianxing; Yuan, Wei; He, Qing

doi:10.1177/0954409720924574

Cited by 12 publications

(10 citation statements)

References 23 publications

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“…The VTI model is hardly affected at all by the speed of the train. 20 A nominal turnout was used in this study, which did not consider the influence of rail wear, non-uniform stiffness of track support, and other related factors. The direction of the TRC also has an effect on the measured parameters.…”

Section: Discussionmentioning

confidence: 99%

“…It is worth noting that the virtual track inspection (VTI) method has been proposed by integrating a dynamic three-dimensional vehicle-track-bridge simulation model, which features an inertial measuring system to analyze the dynamic irregularities on simply supported beam bridges. 20 From a simulation perspective, the VTI method can reveal the inherent structural irregularities under the load of a moving vehicle.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of the inherent structural irregularities of high-speed railway turnouts based on a virtual track inspection method

Sun

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part F:

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Track geometry parameters measured by a track recording car at a turnout are often hard to interpret due to the concomitant geometric complexity, especially for a high-speed railway turnout whose running edge is not interrupted. The virtual track inspection (VTI) method integrated with a multibody system model is proposed to reveal the longitudinal level and alignment of high-speed railway turnouts when the train passes in the main line and in the branch line. Firstly, the principle of inertial measurement and its implementation in MBS are introduced. Then, the VTI method is applied to the vehicle-turnout dynamics using a single-layered co-running track model and validated on tangent and curved tracks in the spatial and wavelength domain. Zero-phase Filters for wavelength ranges 3–25 m and 1–5 m are necessary to eliminate interference from long waves, and to better identify the switch and crossing, respectively. Finally, the effect of different track foundations is studied, including the two-layered co-running track model and the finite element model on the VTI method.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation of the inherent structural irregularities of high-speed railway turnouts based on a virtual track inspection method

Sun

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…At the preliminary stage, the spatial orientation of the own coordinate system of each body included in the wagon model, parallel to the axes CS0, is set. In the process of describing the hinges for each body, the vector ri (0) is specified in the initial position (at t = 0) and the type of orientation angles is chosen [10]. The equations describing the motion of the i-th body of the mechanical system "car-track" when SCi coincides with the main axes of inertia of the bodies have the form:…”

Section: Methodsmentioning

confidence: 99%

Modeling the interaction of the rolling stock and the track in the emergency braking mode of a passenger train

Zhauyt,

Solonenko,

Musayev

et al. 2024

Preprint

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The Author analyze the transitional mode of movement of a passenger train caused by sudden braking by the driver. To study the possibility of derailment of passenger cars, a simulation model of the movement of a train consisting of a locomotive and twenty passenger cars was developed in the Universal Mechanism software environment, designed to study the dynamics and kinematics of mechanical systems, which include railway rolling stock. The developed model allows taking into account the longitudinal, transverse and vertical vibrations of all cars and locomotive. All bodies in the model are assumed to be absolutely rigid. The assumption of non-deformability of the bodies is based on the fact that the stiffness of the spring suspension and elastic connections is significantly less than the structural rigidity of the bogie frames and the bolster structure, and the frequency of elastic vibrations of these bodies is much higher than the frequency of their vibrations on the spring suspension. Passengers and cargo in a wagon are considered to be non-deformable and integral with the wagon body, similarly in the case of a locomotive body. Between the elements of the system, connections are involved that regulate certain relative movements of these elements.

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“…At the preliminary stage, the spatial orientation of the own coordinate system of each body included in the car model, parallel to the axes CS0, is set. In the process of describing the hinges for each body, the vector ri (0) is specified in the initial position (at t = 0) and the type of orientation angles is chosen [10]. The equations describing the motion of the i-th body of the mechanical system "car-track" when SCi coincides with the main axes of inertia of the bodies have the form:…”

Section: Methodsmentioning

confidence: 99%

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

Solonenko,

Musayev,

Zhunisbekov

et al. 2023

Preprint

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The article analyzes the transitional mode of movement of a passenger train caused by emergency braking by the driver. To study the possibility of derailment of passenger cars, a simulation model of the movement of a train consisting of a locomotive and twenty passenger cars was developed in the Universal Mechanism software environment, designed to study the dynamics and kinematics of mechanical systems, which include railway rolling stock. The developed model allows taking into account the longitudinal, transverse and vertical vibrations of all cars and locomotive. All bodies in the model are assumed to be absolutely rigid. The assumption of non-deformability of the bodies is based on the fact that the stiffness of the spring suspension and elastic connections is significantly less than the structural rigidity of the bogie frames and the bolster structure, and the frequency of elastic vibrations of these bodies is much higher than the frequency of their vibrations on the spring suspension. Passengers and cargo in a wagon are considered to be non-deformable and integral with the wagon body, similarly in the case of a locomotive body. Between the elements of the system, connections are involved that regulate certain relative movements of these elements.

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Vertical track irregularity analysis of high-speed railways on simply-supported beam bridges based on the virtual track inspection method

Cited by 12 publications

References 23 publications

Simulation of the inherent structural irregularities of high-speed railway turnouts based on a virtual track inspection method

Simulation of the inherent structural irregularities of high-speed railway turnouts based on a virtual track inspection method

Modeling the interaction of the rolling stock and the track in the emergency braking mode of a passenger train

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

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