Railway freight car operation safety assessment method and system

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...

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 range of the coupler, which seriously threatens the safety of the train. The traditional The monitoring method cannot accurately and effectively assess the risk of overturning and derailment caused by the force of the coupler when the railway freight vehicle is running

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