A kind of catenary elastic sling tension measurement method and system
A measurement method and catenary technology, applied in the direction of tension measurement, complex mathematical operations, instruments, etc., can solve the problems of poor instrument flexibility and cumbersome preparation work, so as to reduce the workload of measurement, improve safety and flexibility, reduce The effect of work intensity
Active Publication Date: 2022-02-08
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0004] This type of instrument has poor flexibility, cumbersome preparation work, and cannot complete the measurement work without power failure of the catenary or without auxiliary online equipment
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[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0076] The purpose of the present invention is to provide a non-contact measuring method and system for catenary elastic sling tension, which solves the problem that the existing contact measuring method (or device) must be on-line and power-off, and greatly reduces the workload of the measurement. Improve the security and flexibility of measurement.
[0077] In order to make the above objects, features and advantages of the present invention more comprehensib...
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The invention discloses a method and a system for measuring the tension of an elastic sling of a catenary. The method includes: obtaining the horizontal distance between the first feature point and the pillar positioning point, the height of the contact line of the second feature point, and the height of the clamp of the third feature point; The height of the contact line and the clamp height of the third feature point are corrected; based on the corrected height of the contact line, the pulling force of the hanging string is calculated by using the force analysis formula of unequal height suspension; the pulling force of the hanging string is calculated based on the pulling force of the hanging string, the first feature point and The horizontal distance of the anchor point of the pillar, the height of the corrected contact line and the height of the clamp are used to establish the moment balance equation of the elastic sling and solve it to obtain the tension of the elastic sling. The invention can reduce the work intensity of measurement and improve the safety and flexibility of measurement.
Description
technical field [0001] The invention relates to the field of catenary parameter measurement, in particular to a method and system for measuring tension of an elastic sling of a catenary. Background technique [0002] The catenary elastic sling is an important part of the elastic chain suspension catenary. It is installed on the catenary cable near the positioning point of the pillar, which plays a role in improving the elastic non-uniform coefficient of the catenary and improving the dynamic performance of the pantograph-catenary contact. Catenary elastic slings have been widely used in high-speed railways and general-speed railways. [0003] The tension of the elastic sling is an important parameter of the elastic chain suspension catenary system. The tension of the elastic sling directly affects the dynamic performance and safety of the pantograph-catenary contact. At present, the measurement of the tension of the elastic sling depends on the contact tension tester. That ...
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IPC IPC(8): G06F30/20G01L5/04G06F17/11G06F119/14
CPCG06F30/20G01L5/04G06F17/11G06F2119/14
Inventor 陈俊卿关金发吴积钦刘继冬张家玮董昭德韩峰方岩
Owner SOUTHWEST JIAOTONG UNIV