A Finite Element Topology Construction Method for Improving Catenary Calculation and Application Efficiency

A topology and construction method technology, applied in special data processing applications, design optimization/simulation, instruments, etc., can solve the problems of lack of systematic topology construction methods, etc., achieve high computing application efficiency, simple methods, and reduce errors rate effect
CN114117709BActive Publication Date: 2022-04-22CHINA RAILWAY ELECTRIFICATION SURVEY DESIGN & RES INST
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY ELECTRIFICATION SURVEY DESIGN & RES INST
Publication Date
2022-04-22

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Abstract

The present invention provides a method for constructing a finite element topology structure for improving catenary calculation and application efficiency, comprising the following steps: S1: obtaining the type, quantity, and position of suspension nodes; S2: determining connection nodes according to the type, quantity, and position of suspension nodes S3: the suspended nodes and connecting nodes, and between connecting nodes and connecting nodes are connected through loaded differential units to form multiple closed loops and construct a catenary topology. The scope of application of the present invention extends from single contact line single catenary cable chain type suspension to complex and changeable structures such as single contact line simple suspension, double catenary cable double contact line chain type suspension, and multiple chain type suspension, reducing the workload of on-site personnel. The error rate is greatly reduced, and the calculation and application time consumption is significantly reduced; at the same time, the adaptability to the working conditions of the catenary hybrid suspension is better, and the pre-configuration calculation is more accurate in a topology that is closer to reality.
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Description

technical field

[0001] The invention belongs to the application field of finite element calculation of rail transit catenary, and in particular relates to a method for constructing a finite element topology structure for improving the efficiency of catenary calculation and application. Background technique

[0002] Based on the increasingly in-depth research on catenary calculation using the finite element method, the construction and operation and maintenance intensity in the field of rail transit has gradually decreased, and the efficiency has gradually increased. The development has shifted to the direction of independent construction of finite element calculation applications. Therefore, more detailed and systematic requirements are put forward for the engineering application of finite element method.

[0003] The core of the application of the finite element method is not only the construction of the differential element type, but also the digital construction of the ac...

Claims

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