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Automatic simulation adjustment method for high-speed railway ballastless track

A ballastless track and high-speed railway technology, which is applied in the fields of railway car body parts, railway auxiliary equipment, railway signal and safety, etc., can solve the problems of uneven quality, high replacement rate of fasteners, low degree of automation, etc., to achieve The effect of ensuring the degree of approach, improving ride comfort, and improving overall ride comfort

Pending Publication Date: 2020-11-17
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed railway ballastless track automatic simulation adjustment method, to solve the problem that the existing ballastless track simulation adjustment method is easily affected by the level of technicians and subjective factors and cause the low degree of automation (it is often necessary to manually remove the fasteners) Repeated adjustments), uneven quality of plans, large adjustments, high replacement rate of fasteners, etc., provide core technical support for the establishment and long-term maintenance of high track smoothness

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  • Automatic simulation adjustment method for high-speed railway ballastless track
  • Automatic simulation adjustment method for high-speed railway ballastless track
  • Automatic simulation adjustment method for high-speed railway ballastless track

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Embodiment Construction

[0049] The present invention will be described in detail below with reference to specific embodiments.

[0050] The method for automatic simulation adjustment of ballastless track of high-speed railway according to the present invention establishes the fine adjustment strategy, adjustment model and constraint conditions of ballastless track, avoids the influence of technical personnel level and subjective factors, and realizes automatic simulation adjustment of ballastless track , the specific implementation method includes the following steps:

[0051] Step 1: According to the deviation between the measured geometric parameters of the ballastless track and the theoretical design value and its overall fluctuation trend, determine the track simulation adjustment baseline.

[0052] In step one:

[0053] Let the deviation value of the orbit and its extremum be y(x), y min (x) and y max (x), the total number of measurement points is n, Y(x)∈[y min (x),y max (x)] is the undete...

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Abstract

The invention relates to an automatic simulation adjustment method for a ballastless track of a high-speed railway. The method comprises the following steps: determining a track simulation adjustmentdatum line; searching all wave crest or wave trough intervals according to the simulation adjustment datum line and the deviation oscillogram; and establishing constraint conditions, and carrying outautomatic simulation adjustment on the ballastless track. The method solves the problems that an existing ballastless track simulation adjustment method is prone to being affected by the level of technicians and subjective factors, so that the automation degree is low (frequent manual fastener-by-fastener repeated adjustment is needed), the scheme quality is uneven, the adjustment amount is large,and the fastener replacement rate is high. A core technical support is provided for establishment and long-term maintenance of the high-smoothness state of the track.

Description

technical field [0001] The invention belongs to the technical field of high-speed railway track measurement, and in particular relates to an automatic simulation adjustment method for high-speed railway ballastless track. Background technique [0002] The fundamental guarantee for the comfort and safety of high-speed wheel-rail trains comes from the high smoothness of the track. However, due to the influence of construction and measurement errors, it is inevitable that the gauge, level (superelevation), track direction, height, etc. cannot be achieved. to design requirements. Therefore, during the construction and operation of high-speed railways, it is necessary to test the track smoothness of high-speed railways, calculate the track irregularity value, and fine-tune the track sections that do not meet the requirements for smoothness. [0003] At present, the simulation adjustment of high-speed railway ballastless track still adopts the method of manually adjusting fastene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/15B61L23/04B61K9/08G06F111/10
CPCG06F30/15G06F30/20B61K9/08B61L23/042G06F2111/10
Inventor 邓川武瑞宏徐小左周东卫
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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