Ansys Ls-Dyna-based ball load service module falling analysis method

Abstract

According to the method, on the basis of an Ansys software platform, the finite element model of the ball load service module is established for falling analysis, coarse mesh division is used during primary analysis, the mesh division time can be shortened, the whole analysis time can be saved, the finite element analysis rate can be increased, and an analysis result can be obtained quickly; and when the analysis result meets the falling requirement, grid optimization is carried out on the whole model according to a finite element grid inspection standard, so that the accuracy of the analysis result is improved. According to the method, the problems that in the prior art, the analysis period is long, the experiment cost is high, the requirement for building a test model and an environment is high, and effective analysis cannot be carried out due to the fact that simulation of the falling process of the load cabin is difficult are solved.

Description

technical field [0001] The invention relates to the field of load service cabin equipment, in particular to a fall analysis method of a ball load service cabin based on Ansys Ls-Dyna. Background technique [0002] Near space generally refers to the airspace with a height of (20-100) km, which refers to a special position between aviation and aerospace airspace. The near space payload service module is an opto-mechatronics device, which will carry high-altitude balloons to near space for scientific experiments. In order to ensure the follow-up processing of scientific experiments, the payload service module will return to the ground at a specific speed after completing the scientific task in the adjacent space. Considering that at the moment of landing, the collision with the ground will affect the stability of the payload service module. Therefore, , In order to recover the relevant instruments and equipment in the load service cabin, it is necessary to analyze the safety o...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for analyzing the fall of a spherical load service cabin based on Ansys Ls-Dyna. The whole analysis time is short, and the analysis efficiency and accuracy are improved, so as to overcome the long analysis period and experimental cost in the prior art. It is relatively high, and has high requirements for the test model and environment construction, and it is difficult to simulate the load cabin fall process, which leads to the problem that effective analysis cannot be carried out

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