High-speed pantograph multidisciplinary design method based on collaborative optimization algorithm

Abstract

The invention discloses a high-speed pantograph multidisciplinary design method based on a collaborative optimization algorithm, and the method comprises the steps: analyzing design factors influencing the working performance of a high-speed pantograph based on a multidisciplinary design theory, and carrying out the disciplinary classification design of the design factors; carrying out numerical analysis on the design parameters of the subjects, deriving mathematical expressions of the design targets of the subjects, and establishing corresponding optimization design models; based on a globalsensitivity method, analyzing a coupling relation and coupling strength of design variables in the optimization design model of each subject; determining system-level and subject-level design variables according to the coupling strength of the design variables, and solving an optimization value of the design variables in the optimization model of each subject by adopting a multidisciplinary designcollaborative optimization algorithm; and analyzing an optimization result of the pantograph according to the optimization value of the design variable, and establishing a three-dimensional solid model of the pantograph. The working performance of the pantograph is improved, the pantograph net current collecting quality is improved, and a new design research idea is provided for the high-speed pantograph.

Description

technical field [0001] The invention relates to the technical field of pantograph-catenary system design for high-speed railways, in particular to a multidisciplinary design method for high-speed pantographs based on collaborative optimization algorithms. Background technique [0002] The basic structure of high-speed pantograph consists of six parts: lower arm, upper frame, tie rod, balance bar, bow head and underframe. It is the key equipment of high-speed trains and an important part of the pantograph-catenary system. In the high-speed operation of the train, once the pantograph and the catenary are in poor contact, it will directly affect the current receiving characteristics between the pantograph and catenary, thereby reducing the traction power supply performance of the train. What is more serious is that if the structure of the pantograph suffers If it is damaged, it will not only interrupt the pantograph-catenary flow, but also cause damage to the catenary system, w...

AI Technical Summary

Problems solved by technology

However, the pantograph is a mechanical device with a relatively complex structure, and the influence of many factors needs to be considered when designing and optimizing the process

However, a large number of studies only conduct in-depth analysis on a certain factor of the pantograph, and seldom explore the influence of the interaction between these factors on the design optimization of the pantograph

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