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Test method and system for longitudinal force of seamless track

A technology of seamless circuit and test method, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve the problems of inaccurate test results, inconvenient operation, easy to be affected by the on-site environment, etc. Effective testing, avoiding external interference, and simple on-site operation

Active Publication Date: 2017-12-12
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method and system for testing the longitudinal force of seamless lines, so as to improve the method for testing the longitudinal force of seamless lines in the prior art, which is easily affected by the field environment, inconvenient to operate, and inaccurate test results. exact question

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  • Test method and system for longitudinal force of seamless track
  • Test method and system for longitudinal force of seamless track
  • Test method and system for longitudinal force of seamless track

Examples

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no. 1 example

[0056] figure 1 A flow chart of the method for testing the longitudinal force of a seamless line provided by the first embodiment of the present invention is shown in . see figure 1 , the seamless line longitudinal force testing method provided by the first embodiment of the present invention may include the following steps:

[0057] Step S11, according to the condition of the section parameter detection, establish the corresponding relationship of the tested rail, the corresponding relationship of the tested rail includes the change of the section parameter of the tested rail in the seamless line, the variation range of the rail temperature and the longitudinal strain Relationship.

[0058] Section parameter detection can include contact section parameter detection and non-contact section parameter detection, in which the contact section parameter detection can only detect the section parameters within 16mm below the rail top, and the non-contact section parameter detection...

no. 2 example

[0082] Figure 7 A schematic structural diagram of the seamless line longitudinal force testing system provided by the second embodiment of the present invention is shown in . see Figure 7 The seamless line longitudinal force testing system 200 provided in the second embodiment may include an establishment module 210 , an acquisition module 220 , a first calculation module 230 , a second calculation module 240 , a third calculation module 250 and a fourth calculation module 260 .

[0083] The establishment module 210 can be used to establish the corresponding relationship of the tested rail according to the conditions of the section parameter detection, and the corresponding relationship of the tested rail includes the change of the section parameter of the tested rail in the seamless line, the range of the rail temperature change and the longitudinal occurrence relationship between strains.

[0084] Section parameter detection can include contact section parameter detectio...

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Abstract

The invention discloses a method and system for testing the longitudinal force of a seamless line. The method includes: according to the conditions of section parameter detection, establishing the corresponding relationship of the tested rail, which includes the relationship between the change of the section parameter of the tested rail in the seamless line, the range of rail temperature change, and the longitudinal strain; The section parameters of the tested rail and the section parameters of the compensation rail obtained by simultaneously detecting the section parameters of the tested rail and the compensation rail; respectively determine the first section parameter change of the tested rail and the compensation rail according to the obtained section parameters The second section parameter change amount; determine the corresponding rail temperature change range according to the second section parameter change amount and the pre-established compensation rail correspondence; according to the determined rail temperature change range, the first section parameter change amount and the measured rail The corresponding relationship determines the corresponding longitudinal strain; and calculates the longitudinal force in the measured steel rail by using the determined longitudinal strain.

Description

technical field [0001] The invention relates to the field of rail detection, in particular to a method and system for testing the longitudinal force of a seamless track. Background technique [0002] At present, the methods for testing the longitudinal force of seamless lines can be divided into stress method, energy method and strain method. The stress method mainly determines the longitudinal force in the rail based on the relationship between the longitudinal stress in the seamless rail and other physical quantities (magnetic properties, ultrasonic waves, and X-rays, etc.). The energy method is based on the influence of the longitudinal force of the rail on the stiffness of the track, and the longitudinal force of the rail is obtained by analyzing the stiffness of the test track. The strain method calculates the longitudinal force of the rail by measuring the strain of the rail. [0003] However, the stress method is easily affected by the actual conditions on site (suc...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
Inventor 王平谢铠泽陈嵘高鸣源钱瑶肖杰灵赵才友韦凯马道林
Owner SOUTHWEST JIAOTONG UNIV