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Track irregularity state optimization simulation fine adjustment method

A technology for track irregularity and state optimization, applied in design optimization/simulation, geometric CAD, special data processing applications, etc., can solve problems such as time-consuming and labor-intensive, uneven track state, low degree of automation, etc., to achieve time-consuming and labor-intensive, Efficient track irregularity, improving the effect of track irregularity

Active Publication Date: 2020-12-15
CHENGDU UNIVERSITY OF TECHNOLOGY +1
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  • Abstract
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Problems solved by technology

This method is low in automation, time-consuming and labor-intensive, and the state of the track is uneven due to the limitation of the level of technicians

Method used

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  • Track irregularity state optimization simulation fine adjustment method
  • Track irregularity state optimization simulation fine adjustment method
  • Track irregularity state optimization simulation fine adjustment method

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. Unless otherwise defined, the technical terms or scientific terms used in the disclosure of the present invention shall have the usual meanings understood by those skilled in the art to which the disclosure belongs. The disclosure of the present invention uses "comprises" or "comprises" and other similar words to mean that the elements or objects appearing before the words include the elements or objects listed after the words and their equivalents, without excluding other elements or objects.

[0043] Such as Figure 1-2 As shown, a fine-tuning method for optimal simulation of track irregularities, the adjustment object can be aimed at the reference rail alone or at the non-referen...

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Abstract

The invention discloses a track irregularity state optimization simulation fine adjustment method, and belongs to the technical field of precision engineering measurement in the field of track traffic. The method comprises the following steps: segmenting a steel rail according to a preset length, and establishing a to-be-adjusted amount target function of a sleeper fastener in a segmentation planning unit; establishing an inequality constraint model based on the steel rail state evaluation function; solving the objective function and the inequality constraint model, and correcting a constant term of the inequality constraint model according to the solving result validity to reduce a constraint boundary value; and repeating the correction and solving processes until the end condition is met, and obtaining the fastener optimization simulation adjustment amount in the planning unit. According to the method, the dual goals of considering the track irregularity state optimization and the optimization simulation adjustment amount can be achieved, and the problems that a track fine adjustment scheme wastes time and labor, and the quality is uneven are solved.

Description

technical field [0001] The invention relates to the technical field of railway track precision engineering measurement, in particular to a method for optimizing, simulating and fine-tuning track irregularities. Background technique [0002] Track irregularity is the source of disturbance to the wheel-rail system, especially under high-speed and heavy-load driving conditions, its low comfort and possible hazards will be more significant. In order to ensure the fast, stable and safe running of the train, it is necessary to rely on precise detection technology and fine-tuning technology to accurately and effectively control the state of the track. [0003] The track fine-tuning after long rail stress relief and locking is a necessary stage to ensure the high smoothness of the ballastless track geometry. At present, based on the track detection point data collected by the track geometric state measuring instrument, the supporting software package is used to manually simulate an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/23
CPCG06F30/13G06F30/23Y02T10/40
Inventor 李阳腾龙岑敏仪王平
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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