Magnetic field tensor numerical calculation method for space debris eddy current racemization

Abstract

The invention relates to a magnetic field tensor numerical calculation method for space debris eddy current racemization. The method includes, on the basis of a magnetic field tensor theory, carryingout mesh generation on the entity geometric model by utilizing finite element software; extracting node position information of the grid model, remodeling an original solid model into a wireframe model by utilizing the extracted node position information, converting the wireframe model into a truss structure model of which the mass is approximately equal to that of the solid geometric model, and calculating a magnetic field tensor of the object according to a magnetic field tensor theory. The method is suitable for solving the magnetic field tensor of the complex body in the space in the magnetic field, the complex entity is approximately equivalent to a truss structure model, the solving process of the magnetic field tensor is made to be streamlined, and calculation of the magnetic fieldtensor is simplified.

Description

technical field [0001] The invention belongs to the technical field of space derotation, and relates to the related calculation of electromagnetic derotation for space conductive objects, in particular to a calculation method of magnetic field tensor in electromagnetic derotation of space debris. Background technique [0002] With the increasing frequency of human spaceflight activities, the number of space debris is increasing exponentially, and a large number of them are concentrated in low-earth orbit and geosynchronous orbit. Due to the influence of space perturbation, these debris are often in a state of high-speed spin motion. This has brought great difficulties to the capture and clean-up of space debris. The racemization of space debris is the premise of capture and cleanup. At present, there are mainly contact racemization and non-contact racemization. The magnetic field-based space debris derotation technology belongs to non-contact derotation. This research is n...

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Problems solved by technology

[0007] In order to solve the problems of complex calculations and non-universal methods in the prior art, the present invention proposes a numerical calculation method of magnetic field tensor for eddy current derotation of space debris. On the basis of magnetic field tensor theory, finite element software is used to carry out solid geometric model Mesh division, extract the node position information of the grid model, use the extracted node position information to reshape the original solid model into a wireframe model, and then convert the wireframe model into a truss structure model with approximately the same quality as the solid geometric model , to calculate the magnetic field tensor of the object, so as to facilitate the calculation of the eddy current derotation torque

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