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Method and system for solving dynamic response of train-rail-infrastructure system

A basic structure and dynamic response technology, applied in the direction of instruments, electrical digital data processing, geometric CAD, etc., can solve the problems of difficult and efficient acquisition of dynamic response

Pending Publication Date: 2022-04-29
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a solution to the problem that the dynamic response of a high-dimensional, nonlinear train-track-infrastructure interaction system involving large-scale, long-distance and multi-layer tracks and basic substructures is difficult to obtain accurately and efficiently. Method and system for solving dynamic response of train-track-infrastructure system

Method used

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  • Method and system for solving dynamic response of train-rail-infrastructure system
  • Method and system for solving dynamic response of train-rail-infrastructure system
  • Method and system for solving dynamic response of train-rail-infrastructure system

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Experimental program
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Embodiment 1

[0060] This embodiment provides a method for solving the dynamic response of the train-track-infrastructure system, including the following steps:

[0061] Step 1: According to the configuration of the train-track-infrastructure system to be analyzed, build a train-track-infrastructure interaction model; where the train and track are regarded as subsystem A, and the infrastructure system is regarded as subsystem B.

[0062] Among them, the train parameters, track parameters, and infrastructure system parameters of the train-track-infrastructure system to be analyzed are determined. Such as rail profile, wheel tread and track irregularity parameters.

[0063] The constructed train-track-infrastructure interaction model is divided into: the train-track subsystem interaction model and the finite element model of the infrastructure subsystem. That is to say, in this embodiment, referring to "Train-track-Infrastructure Dynamic Interaction—Theoretical Model and Numerical Algorithm"...

Embodiment 2

[0133] Based on the above-mentioned method for solving the dynamic response of a train-track-infrastructure system, the present invention also provides a system for solving the dynamic response, which includes:

[0134] The model construction module is used to construct a train-track-infrastructure interaction model according to the configuration of the train-track-infrastructure system to be analyzed; wherein, the train and track are regarded as subsystem A, and the infrastructure system is regarded as subsystem A System B;

[0135] The dynamic response acquisition module is used to perform numerical simulation on the constructed vehicle-track-infrastructure interaction model to obtain the dynamic response of the train-track-infrastructure system.

[0136] For the specific calculation and analysis process of the dynamic response acquisition module, reference may be made to the relevant statements in the above-mentioned embodiment 1, that is, different strategies are selected ...

Embodiment 3

[0139] This embodiment provides a dynamic response analysis terminal, which includes one or more processors and a memory storing one or more computer programs, and the processor invokes the computer programs to achieve:

[0140] A method for solving the dynamic response based on the above-mentioned train-track-infrastructure system. For the specific implementation process, reference may be made to the relevant statements in Embodiment 1. Such as:

[0141] Step 1: According to the configuration of the train-track-infrastructure system to be analyzed, build a train-track-infrastructure interaction model; where the train and track are regarded as subsystem A, and the infrastructure system is regarded as subsystem B.

[0142] Step 2: According to the finite element modeling method of the train-track subsystem and the infrastructure subsystem, determine the respective integration methods for subsystem A and subsystem B.

[0143] Step 3: Perform numerical simulation to obtain the ...

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Abstract

The invention discloses a train-track-infrastructure system dynamic response solving method and system, and the method comprises the steps: building a train-track-infrastructure interaction model, taking a train and a track as a subsystem A, and taking an infrastructure system as a subsystem B; performing numerical simulation based on the vehicle-track-base structure interaction model to obtain a system dynamic response; for each analysis period, judging whether the subsystem A and the subsystem B have an interaction area or not; if yes, the dynamic responses of the subsystem A and the subsystem B are calculated by adopting a mixed integration strategy, namely the subsystem A and the subsystem B calculate the respective dynamic responses by adopting different integration methods; and if not, calculating the dynamic response of the subsystem A by adopting a single integral strategy. For a large-scale train-track-infrastructure system, high-precision and rapid solution of system dynamic response is realized.

Description

technical field [0001] The invention belongs to the technical field of railway engineering, and in particular relates to a method for solving the dynamic response of a train-track-infrastructure system and a system thereof. Background technique [0002] Train-track-infrastructural dynamic interaction is a multidisciplinary basic research field involving vehicle-track dynamics, structural dynamics and civil engineering. With the requirements of railway construction and national development strategy, how to accurately reveal the interaction mechanism of train-line-infrastructure during the service period, optimize system design, evaluate system status, etc., is of great importance for improving the quality of train operation and guiding the maintenance of track-infrastructure Maintenance is important. [0003] For large railway infrastructure systems, it is an effective means to use computer simulation to reveal the dynamic behavior of the system during the service period. I...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F30/13G06F111/10G06F119/14
CPCG06F30/23G06F30/13G06F2111/10G06F2119/14
Inventor 徐磊余志武刘虎兵谈遂毛建锋单智王卫东娄平朱志辉王琨宋力柏文陈志辉盘柳朱仔旭闫斌陈伟
Owner CENT SOUTH UNIV