VTK-based carrier rocket structural finite element analysis visualization method

Abstract

The invention discloses a VTK-based carrier rocket structural finite element analysis visualization method and particularly relates to a C# and VTK united carrier rocket structural finite element modal analysis result visualization method and belongs to the field of visualization of finite element analysis of carrier rocket structures. According to the method, relevant data are acquired and storedin corresponding categories by reading a finite element model file and a finite element analysis result file of a carrier rocket, and four coefficients k1, k2, k3 and k4 are set in order to achieve modal shape animation control of a user; soon afterwards, a new canvas is created or relevant functions are called to clear all the graphics on the canvas, and modal shape animations are displayed by cyclically and continuously calling a function of drawing a carrier rocket model and clearing the functions of all the graphics on the canvas until a cycle index reaches a preset value. By adopting themethod, powerful support is provided for application on the aspects of structure design, vibration control, load analysis and the like of the carrier rocket structure, and the technical problems of practical engineering in the corresponding fields are solved.

Description

technical field [0001] The present invention relates to a kind of visualization method of launch vehicle structure finite element analysis, in particular to a kind of C# and VTK (Visualization Toolkit The Visualization Toolkit) joint launch vehicle structure finite element modal analysis result visualization method, which belongs to launch vehicle structure finite element analysis field of visualization. Background technique [0002] As a vehicle for sending various space spacecraft into space, a launch vehicle mainly includes a rocket body, a power plant system, and a control system. Among them, the rocket body is the base body of the launch vehicle, and its importance to the launch vehicle is self-evident. Therefore, it is necessary to conduct a series of analyzes on the rocket body structure. Among them, modal analysis, as one of the methods to study the dynamic characteristics of structures, is mainly used to analyze modal parameters such as natural frequency, damping ...

AI Technical Summary

Problems solved by technology

[0011] The following technical problems exist in the field of visualization of finite element analysis results of launch vehicle structures: (1) The rendering effect of finite element elements in the model is not realistic; (2) The modal vibration animation display effect is too rough, making it difficult to analyze Mode shape; (3) It is not easy to be integrated in the finite element analysis software platform of the launch vehicle structure

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