Results 181 to 190 of about 267 (225)
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A Turnout Switch for a Superconductively Levitated Linear Transport System
IEEE Transactions on Applied Superconductivity, 2007Within the SupraTrans project, a joint venture between research institutes, universities and industrial companies, a full working prototype of a superconductively levitated transport system has been constructed and developed. The levitation and guidance system is based on flux pinning in melt-textured bulk YBa2Cu3O7-delta (YBCO) that stabilizes the ...
Christoph Beyer +3 more
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Improvement and Lock Calculation of Electric Switch Machine of Railway Turnout
Applied Mechanics and Materials, 2013Electric switch machine locks the crossing rail in the working direction and checks the working status of the crossing. With the increase of train speed, the ZD(J)9 electric switch machine cant satisfy the equipment of high speed railway, This paper studied the optimization; in order to study the lock calculation of nose rail after conversion, a ...
Jing Mang Xu, Ping Wang, Hao Xu
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Wireless Vibration Monitoring System for Rail Base Defect of Switch Turnout
2017 Far East NDT New Technology & Application Forum (FENDT), 2017Due to asymmetrical structure and motion working state of rail turnout, it is difficult to monitor turnout defect by conventional techniques. In this paper, a wireless vibration monitoring system was proposed for monitoring rail base defect, which could realize two kinds of active and passive working patterns.
Pan HU +6 more
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Design optimisation of switch rails in railway turnouts
Vehicle System Dynamics, 2013Inspired by a manufacturing process of switch rails for railway turnouts, a method for the optimisation of switch rail profile geometry is presented. The switch rail profile geometry is parameterised with four design variables to define a B-spline curve for the milling tool profile, and two design variables to prescribe the deviation from the nominal ...
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Applied Mechanics and Materials, 2012
Switching force and inadequate displacement are two key issues in the conversion of switch rail, which determined some important parameters such as the traction position of switch machine, the displacement of traction point and the length of switch rail.
Biao Wang +4 more
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Switching force and inadequate displacement are two key issues in the conversion of switch rail, which determined some important parameters such as the traction position of switch machine, the displacement of traction point and the length of switch rail.
Biao Wang +4 more
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Smart Switch: The Application of Fiber Optic Continuous Strain Sensing to the Railroad Turnouts
2022 Joint Rail Conference, 2022Abstract This paper discusses the application of Fiber Optic-based Continuous Strain Sensing (FOCSS) to Switches (a.k.a. railroad turnouts) and presents the resulting benefits. The FOCSS technology allows effective rail break detection to all parts of the switch and reliable point position detection in a secure environment.
Frank J. Smith, Faeze Ghofrani
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Wheel/Rail Relationship Optimization of Switch Zone in High-Speed Railway Turnout
International Conference on Transportation Engineering 2009, 2009Wheel/rail relationship design of switch is a core technique in high-speed railway turnout development. A stimulation calculation model is established by employing the train-turnout dynamic theory in order to ensure the stability, safety and switch wear resistance of the turnout on the passenger dedicated lines. Take the 350 km/h PDL NO.
Ping Wang, Rong Chen, Xiaoping Chen
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Research on Design of Gauge-Widen Switch for High-Speed Turnout
2012With the construction of passenger dedicated lines, the demand of high-speed turnouts has been stared in the face. Base on Kinematic Gauge Optimization (KGO), a switch designed by Germany, this paper designs a gauge-widen switch of NO.18 turnout. In order to study the impact of gauge-widen switch on the stability and security of train, the author ...
Guo Jing, Ping Wang, Jinhui Xu
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Numerical simulation of rail profiles evolution in the switch panel of a railway turnout
Wear, 2016Abstract In order to simulate the rail profiles evolution in the switch panel of a railway turnout, the simulation of vehicle–turnout dynamic interaction, the wheel–rail rolling contact model and rail material wear model are integrated as a numerical simulation tool for rail wear of the switch panel in this paper.
Ping Wang +3 more
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Switch panel design based on simulation of accumulated rail damage in a railway turnout
Wear, 2016A methodology for numerical prediction of accumulated rail damage in railway turnouts is presented. Based on simulation of dynamic vehicle-track interaction followed by a discretisation of the conditions in each wheel-rail contact, distributions of rail wear are calculated by the Archard model of sliding wear, while surface initiated rolling contact ...
Jens C.O. Nielsen +2 more
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