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Method for assembling reference train unit collision model

An assembly method and collision model technology, which are used in measurement devices, railway vehicle testing, machine/structural component testing, etc., which can solve the problem that the complete response cannot be simulated realistically, the influence of frictional momentum and energy cannot be investigated, and the train derailment cannot be simulated. Failure and other problems, to achieve the effect of shortening the research and development cycle, improving the accuracy and improving the reliability

Inactive Publication Date: 2013-11-06
肖锋
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] From the regulations EN 15227:2008(E), it can be seen that the main means of train unit crashworthiness verification is numerical simulation, rather than real train unit crash tests. It is found from the literature that the "train unit lumped mass-spring model" is At present, the mainstream model used in the simulation analysis of train unit crash can be used for the design of the crashworthiness structure of the train unit car body, but the "train unit concentrated mass-spring model" adds artificial factors because it ignores some key factors, so , there are obvious defects: it is impossible to truly simulate the complete response of each car body; it is impossible to simulate the "V" derailment failure of the train; it is impossible to examine the influence of friction on momentum and energy

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  • Method for assembling reference train unit collision model
  • Method for assembling reference train unit collision model
  • Method for assembling reference train unit collision model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides the assembly method of the reference train unit crash test model, and its steps are:

[0070] The first step is to assemble the test model of the reference head car: the reference head car consists of the head car rigid underframe (1) (meaning that no obvious deformation will occur during the collision), the head car bogie (2), and the semi-automatic coupler mounting support ( 3). The anti-climbing device is composed of the front end energy-absorbing structure (4), the semi-automatic coupler (5) and the semi-permanent coupler installation support (6) of the head car. Prepare relevant parts and assemblies. Refer to the assembly process of the head car as follows: figure 1 As shown, the assembly sequence is:

[0071] (a) Install the rigid underframe (1) of the head car on the bogie (2) according to the actual design or installation method and installation position, to obtain the body structure module (A) of the head car;

[0072] (b) Install the ...

Embodiment 2

[0083] This embodiment provides the assembly method of the reference train unit collision simulation model, and its steps are:

[0084] The first step is to assemble the simulation model of the reference head car: the reference head car is composed of the head car rigid underframe (1) (meaning that no obvious deformation will occur during the collision, and rigid body simulation is used in the simulation model), the head car bogie (2 ), semi-automatic coupler mounting support (3), anti-climbing device and front-end energy-absorbing structure (4), semi-automatic coupler (5) and head car semi-permanent coupler mounting support (6), according to the corresponding train collision model modeling quality According to the standard, the finite element models of each part are established respectively, wherein the finite element model of the semi-automatic coupler (5) has been calibrated, that is, its mechanical properties are basically consistent with those of the test or design, and th...

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Abstract

The invention discloses a method for assembling a reference train unit collision model. The method comprises the following steps: assembling a reference train head, assembling a reference trailer, assembling a reference trailer unit, assembling a train unit and assembling a trail unit counterweight. According to the method provided by the invention, a 'reference train unit collision test model' and a 'reference train unit collision simulation model' can be acquired, thereby supplying test and analysis means to different stages of train unit collision resistance design and greatly increasing the reliability of train unit collision resistance design. In the early stage of train body collision resistance design, the reference train unit collision test and simulation are introduced, thereby greatly shortening the researching and developing period. The reference train unit collision test model has repeatability, thereby obviously lowering the cost of collision test and achieving the effect as same as the effect of a real train unit collision test. The method provided by the invention has important engineering practice significance for increasing the level of train unit collision resistance design.

Description

technical field [0001] The invention relates to an assembly method of a reference train unit collision model, in particular to the train unit collision test and simulation performed according to the requirements of laws and regulations. Background technique [0002] With the advancement of science and technology, the performance and technical level of train vehicles have been continuously improved, and the speed of trains has been continuously increased, making the consequences of collision accidents more serious. Therefore, the crashworthiness design of train vehicles is one of the important design goals in the research and development of rail vehicles, and it is of great importance to improve the safety of train operations. Significance. [0003] European Union Regulations—Requirements for Crashworthiness of Train Carbody EN 15227:2008(E), which proposes general requirements for crashworthy design of trains, including the following aspects: reducing the risk of anti-climb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G01M17/08
Inventor 肖锋
Owner 肖锋
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