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Method and system for determining load diagram of ballastless track vehicle of high-speed railway

A vehicle load, ballastless track technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of safety redundancy, design waste, track structure differences, etc., to reduce construction costs and avoid safety redundancy. The effect of improving production efficiency

Pending Publication Date: 2020-11-13
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
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  • Application Information

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Problems solved by technology

In the early development stage of ballastless track in China, due to the lack of experience in the operation of ballastless track trains, and the type of EMUs has not yet been unified, and the track structure is also quite different, it is impossible to form a unified train load diagram
We can only learn from the load diagram of bridge trains or use rough single-wheel loads for loading, and consider a large enough safety factor, which will inevitably bring too much safety redundancy in the design process of ballastless track, resulting in waste of design

Method used

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  • Method and system for determining load diagram of ballastless track vehicle of high-speed railway
  • Method and system for determining load diagram of ballastless track vehicle of high-speed railway
  • Method and system for determining load diagram of ballastless track vehicle of high-speed railway

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Embodiment Construction

[0049] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0050] First aspect, refer to figure 1 As shown, a method for determining the load pattern of a high-speed railway ballastless track vehicle provided by an embodiment of the present invention includes the following steps:

[0051] S100. Obtain the wheel-rail force loading method through simulation calculation; the wheel-rail force loading method includes: fixed vehicle load force quantity and loading distance;

[0052] S200. Accor...

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Abstract

The invention discloses a method and system for determining a load diagram of a ballastless track vehicle of a high-speed railway. The method comprises the steps that a wheel track force loading modeis obtained through simulation calculation; wherein the wheel-rail force loading mode comprises a fixed vehicle load loading force quantity and a loading distance; according to the wheel-rail force loading mode, a large number of vehicle-mounted wheel-rail force tests and ground wheel-rail force tests are conducted, wheel-rail force statistical parameters are obtained, and a wheel-rail force loading quantity value is obtained; and the load diagram of a ballastless track vehicle is determined according to the wheel track force loading mode and the wheel track force loading quantity value. According to the method, the ballastless track load condition can be accurately evaluated, excessive safety redundancy is avoided, waste caused by design and construction is reduced, the production efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of railway engineering application calculation and design, and is particularly suitable for the value acquisition of vehicle loads in high-speed railway ballastless track design; in particular, it relates to a method and system for determining the load schema of high-speed railway ballastless track vehicles. Background technique [0002] Ballastless track is the main form of high-speed railway track structure. The train load is one of the key design loads of high-speed railway ballastless track. When different types of EMUs are operating at high speed on the line, they will produce high-frequency and reciprocating impact load effects on the ballastless track. It is the main factor affecting the dynamic force of the structure. In the early development stage of ballastless track in China, due to the lack of experience in the operation of ballastless track trains, and the type of EMUs has not yet been unified, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06F119/14
CPCG06F30/13G06F30/20G06F2119/14Y02T90/00
Inventor 赵国堂赵磊王继军刘伟斌赵勇王璞徐旸刘海涛施成王梦宁娜
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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