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Joint-simulation-based on-bridge ballastless turnout structure system and dynamic analysis method thereof

A technology of dynamic analysis and co-simulation, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of not being able to accurately reflect the track and bridge structure, and it is difficult to establish a wheel-rail contact relationship model, etc., to achieve high theoretical Value and commercial promotion prospect, convenient production design application, convenient modeling and analysis effect

Inactive Publication Date: 2014-01-01
BEIJING JIAOTONG UNIV
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Problems solved by technology

The finite element method can establish a relatively fine structural model, but it is not easy to establish a wheel-rail contact relationship model, while the multi-body dynamics method can carry out detailed modeling for the vehicle system and wheel-rail contact relationship, but it cannot accurately reflect the track and bridge structure

Method used

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  • Joint-simulation-based on-bridge ballastless turnout structure system and dynamic analysis method thereof
  • Joint-simulation-based on-bridge ballastless turnout structure system and dynamic analysis method thereof
  • Joint-simulation-based on-bridge ballastless turnout structure system and dynamic analysis method thereof

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Embodiment 1

[0040] Embodiment 1: The present invention implements a dynamic analysis method for a ballastless turnout structure system on a bridge. In this embodiment, the dynamic analysis of the seamless turnout structure system on the bridge is carried out based on the spatial coupling model. The structure system of ballastless turnout on the bridge includes: vehicle model, turnout model, track and bridge substructure model; wheel-rail coupling contact model between vehicle and turnout, track support model between turnout and bridge.

[0041]The vehicle model is completed using SIMPACK software; the turnout model is firstly produced by a self-programmed switch section discrete data file, and then the wheel-rail module of the SIMPACK software is restored to a variable-section turnout model with actual turnout section characteristics. The track and bridge The substructure model is completed using ABAQUS software, and then imported into the SIMPACK software environment through the FEMBS mo...

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Abstract

The invention relates to a joint-simulation-based on-bridge ballastless turnout structure system and a dynamic analysis method thereof. The dynamic analysis method of the joint-simulation-based on-bridge ballastless turnout structure system comprises the following steps of firstly finishing the model establishment of a balastless track and bridge structure by utilizing the ABAQUS software; secondly finishing the model establishment of a vehicle and a turnout by utilizing the SIMPACK software; finally establishing rigid-flexible coupled wheel-track contact relationship in the SIMPACK software to form a vehicle-turnout-bridge coupling system model, and realizing the connection and the coupled solution of a vehicle model, a turnout model and a bridge model. According to the joint-simulation-based on-bridge ballastless turnout structure system and the dynamic analysis method thereof, which are disclosed by the invention, the complex wheel-track contact relationship of a turnout zone is fully considered, and the model establishment of a turnout and bridge structure is finished according to the actual state to the greatest extent so as to ensure the detailedness, the completion and the accuracy of the model; the model establishment is finished by utilizing the business software, so that the production, the design and the application are convenient, and the improvement is remarkable by comparing the modeling method provided by the invention with the traditional modeling method.

Description

technical field [0001] The invention relates to a dynamic analysis method of a ballastless track seamless turnout structure system on a bridge based on a joint simulation vehicle-turnout-bridge space coupling model, and belongs to the technical field of railway engineering application calculation and design. Background technique [0002] Turnout is an essential line equipment when a train transfers from one track to or crosses another track. It is an important part of the railway track structure. High-speed turnouts are an important factor that limits the speed of trains in high-speed railways. Its structure and The state has a direct impact on the safety and stability of train operation and the comfort of passengers. [0003] High-speed railways have high requirements for track smoothness, so there are a large number of lines on bridges for high-speed railway construction. The large proportion of bridges, viaducts and long bridges have become the main features of my countr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 高亮李苍楠侯博文赵磊蔡小培肖宏辛涛马春生
Owner BEIJING JIAOTONG UNIV
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