An evaluation method for the impact of ballastless track typical damage on the operation safety of a high-speed train

A safety-impacting, ballastless track technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems affecting driving safety, affecting the overall aesthetics and durability of track structures, sudden changes in track structure rigidity, etc. question
CN109033618AActive Publication Date: 2018-12-18CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2018-12-18

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Abstract

The invention discloses an evaluation method for the impact of ballastless track typical damage on the operation safety of a high-speed train. The method is based on the dynamic model of a ballastlesstrack structure, and is characterized in that, based on the theory of space vibration analysis of a train-track system, track dynamics and random analysis of train derailment energy, through mechanics reasonable simplification, all kinds of typical damage of ballastless tracks are simulated to establishes the dynamic model of ballastless track structure in damaged state, and the vibration response ofdifferent damage types or different degree of the same damage on the track system is analyzed and calculated. Based on the dynamic calculation results and the damage classification criteria, the influence of different degrees of damage on the ride comfort and safety of ballastless track is determined. On the basis of reducing labor intensity, the invention can quickly determine the influence of various damage of ballastless track on the operation of high-speed train, thereby providing a basis for timely adopting corresponding maintenance measures and further providing a guarantee for the safe operation of the high-speed train.
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Description

technical field

[0001] The invention relates to the technical field of railway engineering maintenance, in particular to a method for evaluating the influence of ballastless track damage on the safety performance of train operation. Background technique

[0002] The ballastless track structure of high-speed railway has the characteristics of good ride comfort and less maintenance, and has been widely used in our country. However, its track structure has been exposed to a complex atmospheric environment for a long time, and is affected by various factors such as train loads and environmental conditions, and various damages and diseases will inevitably occur. There is an urgent need for a method for evaluating the impact of typical damage on ballastless track on the safety of high-speed railway operation, to determine which damaged parts will only affect the overall aesthetics of the track structure, which influencing factors will directly cause irreversible damage to the conc...

Claims

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