Rail temperature stress detection method and terminal equipment

A technology of temperature stress and detection method, applied in the direction of measuring force, measuring device, instrument, etc., can solve the security threats of railway system and other problems

Active Publication Date: 2022-05-31
SHIJIAZHUANG TIEDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a rail temperature stress detection method and terminal equipment to solve the problem in the prior art that using sensors to test the rail temperature stress poses a threat to the safety of the railway system itself

Method used

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  • Rail temperature stress detection method and terminal equipment
  • Rail temperature stress detection method and terminal equipment
  • Rail temperature stress detection method and terminal equipment

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Embodiment Construction

[0024] In the following description, for purposes of illustration and not for limitation, features such as specific system structures, techniques, and the like are presented.

[0025] In order to illustrate the technical solutions of the present invention, the following specific embodiments will be described.

[0030] Wherein, the experimental rail and the target rail are located in the same track line.

[0033] Figure 2 presents a schematic diagram of a cross-section of a 60kg / m rail. It can be seen from Figure 2 that the cross-section of the rail is relatively complex, in order to

[0036]

[0042]

[0043] Wherein, L is the length of the rail in the track circuit.

[0045]

[0048] Wherein, E is the elastic modulus of the rail.

[0050]

[0051] It can be seen from the above that there is a certain correspondence between the current of the track circuit and the temperature stress of the rail. for

[0053] In some embodiments, the corresponding relationship between the current ...

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Abstract

The present invention is applicable to the technical field of rail detection, and provides a rail temperature stress detection method and terminal equipment, including: temperature stresses obtained in experiments at multiple preset rail temperatures and the currents of the rail circuits corresponding to each temperature stress respectively The value of the unknown parameter in the corresponding relationship between the current of the track circuit and the temperature stress is obtained; the current of the track circuit of the target rail is obtained, and the target is determined according to the corresponding relationship between the current of the track circuit and the temperature stress and the value of the unknown parameter. The temperature stress of the rail. Because there is a corresponding relationship between the current of the track circuit and the temperature stress in theory, the present invention obtains the unknown parameters in the corresponding relationship formula according to the experimental data fitting, so as to obtain the corresponding relationship between the current of the track circuit and the temperature stress, and obtain the track circuit through the existing track circuit The temperature stress of the target rail can be obtained by using a certain current, without additional sensors, and will not cause interference to the track line. The detection method is simple, fast and effective.

Description

Rail temperature stress detection method and terminal equipment technical field The invention belongs to the technical field of rail detection, in particular to a kind of rail temperature stress detection method and terminal device ready. Background technique [0002] With the development of high-speed and heavy-duty railways, seamless lines are widely used. Ordinary line rail length will vary with The rail temperature changes with the change of the rail temperature, and the seamless line rail cannot expand and contract freely, so when the rail temperature changes, the inside of the rail will accumulate. Gather a lot of temperature force. Excessive temperature force will lead to lateral instability of the track or fracture of the rail, resulting in a train derailment accident and endangering the Driving safety. [0003] In the daily maintenance and repair of the railway, it is necessary to regularly observe and release the stress of the seamless track rail to ensure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/20
CPCG01L1/20
Inventor 谢铠泽赵佳李泽宇赵维刚杨勇戎立帆张浩
Owner SHIJIAZHUANG TIEDAO UNIV
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