Railway freight car operation safety assessment method and system

A technology for safe operation and railway wagons, applied in railway signal and safety, railway car body parts, railway signal, etc., can solve problems such as the inability to accurately and effectively assess the risk of overturning, derailment, and threats to train operation safety

Active Publication Date: 2020-10-30
SOUTHWEST JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the train, the coupler has a certain degree of freedom of swing while realizing the connection of the train. The longitudinal impulse of the train is easy to generate a lateral force that deflects the car body through the swing rang

Method used

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  • Railway freight car operation safety assessment method and system
  • Railway freight car operation safety assessment method and system
  • Railway freight car operation safety assessment method and system

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Experimental program
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Embodiment

[0032] Such as figure 1 As shown, the railway wagon safety assessment method considering the coupler swing angle effect of the present invention comprises the following steps:

[0033] S1. Obtain the dynamic parameters of the wagons in the train formation according to the horizontal and vertical section data of the line and the train formation information obtained from the research data; and calculate the force of the coupler in actual operation according to the data collected by the data acquisition device installed on the coupler and swing angle data;

[0034] S2. Based on the dynamic parameters of the freight car, the vehicle-rail coupling dynamic model is established, and the collected data is used as an input parameter, which is applied to the front and rear couplers of the freight car. Combined with the operating conditions of the marshalling, the wheel-rail lateral force is calculated respectively Q, wheel-rail vertical force P, unilateral wheel-rail vertical dynamic l...

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Abstract

The invention discloses a railway freight car operation safety assessment method and system. The truck dynamic model is established according to the parameters obtained through research; based on thedata collected by the data acquisition device arranged on a car coupler, the stress condition and the swing angle data of the coupler in actual operation are calculated; the method further comprises the following steps: inputting the calculated data into the constructed dynamic model of the corresponding freight train as external excitation, calculating the dynamic correspondence of each carriage,finally calculating a corresponding safety index according to the dynamic correspondence of each carriage, and respectively judging whether each truck meets a safe operation condition or not. Therefore, the invention can accurately and effectively evaluate whether the multi-section truck marshalling freight train meets the requirements of safety indexes or not under the influence of the swing angle of the coupler, thereby avoiding serious accidents such as derailment and overturning.

Description

technical field [0001] The invention relates to the technical field of railway transportation safety, in particular to a method and system for assessing the safety of railway wagon operation in consideration of the influence of longitudinally acting coupler swing on the dynamic performance of trains. Background technique [0002] The safety of railway freight transportation is the most important area of ​​concern in the field of rail transportation. With the substantial increase in the speed and load of freight trains, and the extensive operation of heavy-haul railways in various regions, the safety of train operation has become a concern of people. focus. [0003] At present, the running state monitoring of traditional freight trains mainly adopts monitoring methods such as overweight and overrun alarms and high axle temperature alarms. Usually, the data module transmits the received information to the monitoring module, and then sends a signal to the alarm module through t...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/08G06F30/20B61L15/00G06F119/14
CPCG06Q10/0635G06Q10/06393G06Q10/083G06F30/20B61L15/0081G06F2119/14
Inventor 王超王开云凌亮高贤波周晓坤
Owner SOUTHWEST JIAOTONG UNIV
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