Railway vehicle ramp operation comprehensive performance evaluation method

Abstract

The invention discloses a railway vehicle ramp operation comprehensive performance evaluation method, and the method comprises the steps: employing a train-train when the comprehensive performance ofa train in ramp operation is evaluated; The invention discloses a track three-dimensional coupling dynamic performance analysis model. the longitudinal direction of the vehicle structure and the railstructure is comprehensively considered; The coupling vibration influence in the transverse direction and the vertical direction evaluates the climbing performance, the operation safety performance, the operation stability performance, the riding comfort performance and the system energy consumption condition when a train passes through a long and large ramp, and the calculated result can comprehensively reflect the comprehensive performance of the train in operation on the ramp.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and specifically relates to a method that can effectively reflect the matching relationship between train vehicles and their operating lines, and efficiently and accurately calculate and evaluate the comprehensive performance of trains running on ramps. Background technique [0002] The planning and construction of my country's railway transportation started late, but developed rapidly, and a large number of newly repaired lines are put into operation every year. Before putting into operation, it is one of the basic conditions to ensure the safety and stability of train operation and the comfort of passenger trains to carry out comprehensive and reliable calculation and evaluation of the comprehensive performance of train vehicles running on newly repaired lines. At the same time, whether the traction and braking system of the train meets the operation requirements of the line (such as runni...

AI Technical Summary

Problems solved by technology

This method cannot calculate key information such as wheel-rail force and vehicle structure vibration during train operation, and the obtained energy consumption data does not include vehicle structure vibration energy consumption and wheel-rail friction energy consumption, and the results cannot fully reflect the actual situation;2 .When conducting vehicle-track coupling dynamics simulation to evaluate vehicle performance, the initial conditions of the vehicle-track coupling model are usually given, and the comprehensive performance information of the train operating under specific line conditions is obtained by iterative calculation

This method cannot obtain the energy consumption data of the train running on the ramp, and ignores the influence of speed changes on the comprehensive performance of the train operation. As a result, it cannot comprehensively and instantly evaluate the comprehensive performance of the train on the ramp.

The results calculated through the longitudinal dynamics model cannot immediately participate in the simulation of the vehicle-track coupling dynamics model, and the results obtained through the simulation of the vehicle-track coupling model cannot provide feedback for the calculation of the longitudinal dynamics model. The calculated train The speed curve and energy consumption data running on the ramp cannot fully reflect the actual situation, and the calculated comprehensive performance evaluation index of the train is also relatively unreliable

The results obtained in this way cannot fully reflect the actual situation, and the energy consumption data during the train operation cannot be accurately obtained, and it is easy to ignore possible problems in the operation process

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