A method for evaluating the distribution characteristics of debris from satellite explosion disintegration

Abstract

The invention provides an evaluation method for the distribution characteristics of satellite explosion disintegration debris, comprising the following steps: (1) the satellite equivalent calculationis carried out, wherein the satellite equivalent calculation comprises the satellite shape equivalent, the structure strength equivalent and the residual propellant equivalent; Step 2: According to the equivalent calculation results of the satellite, the distribution characteristics of the explosive debris are evaluated, which includes the prediction of the total number of explosive debris, the distribution of the debris mass, the distribution of the surface mass ratio and the distribution of the velocity increment. Through satellite modeling analysis and numerical calculation of disintegration behavior, the invention can quickly evaluate the distribution characteristics of disintegration debris when the satellite in orbit is accidentally exploded and disintegrated, scientifically analyzethe possible harm of the disintegration debris to the normal operation satellite and the orbital resources, so as to take effective countermeasures.

Description

Technical field [0001] The invention mainly relates to the field of impact dynamics technology and space vehicle space protection, and in particular relates to a method for evaluating the distribution characteristics of satellite explosive disintegration fragments. Background technique [0002] With the increasing frequency of human space launch activities, the space debris environment has deteriorated day by day, posing a serious threat to the safe operation of spacecraft in orbit. [0003] Space debris mainly originates from the final stage of the launch vehicle, fragments of spacecraft disintegration in orbit, mission-related debris (also called operational debris), and failed spacecraft. Moreover, the proportion of each part changes over time. According to the statistics of the number of objects cataloged by the US SS, after 2007, the sudden satellite disintegration event led to a very obvious upward trend of disintegration debris, and it has even become the main source of sudd...

AI Technical Summary

Problems solved by technology

[0005]In-orbit satellites (or spacecraft) have various forms and structures, and their disintegration behaviors and patterns are complex. Both in-orbit or ground simulation experiments and theoretical analysis are quite difficult. To a large extent, it restricts the development of research work, especially the disintegration model with more application value needs to be further studied and established

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