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Satellite many-body dynamics system computing method and system based on parent child relation iteration

A technology of multi-body dynamics and parent-child relationship, which is applied in the calculation method and system field of satellite multi-body dynamics system, and can solve problems such as the inability to generate mathematical models of control systems

Inactive Publication Date: 2018-11-23
BEIJING INST OF CONTROL ENG
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Problems solved by technology

However, there are too many zero-element matrix calculations in the transmission method described by the channel matrix, and the calculation speed is fast by using the hinge force recursion method, but it can only perform numerical calculations and cannot generate mathematical models for control system design and analysis.

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  • Satellite many-body dynamics system computing method and system based on parent child relation iteration
  • Satellite many-body dynamics system computing method and system based on parent child relation iteration
  • Satellite many-body dynamics system computing method and system based on parent child relation iteration

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Embodiment Construction

[0038] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0039] This embodiment uses the parent-child relationship between the nodes of the tree system to establish the dynamic recursive relationship of the parent-c...

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Abstract

The invention discloses a satellite many-body dynamic system computing method and a satellite many-body dynamics system computing system based on parent child relation iteration. A satellite dynamic system of an arbitrary tree structure is automatically combined into a dynamic system equation. A parent child relation between tree system nodes is used, and a dynamic recurrence relation of the parent child relation is built. Branches are downwards recursively numbered in sequence from the left to right according to the tree structure, the condition that in any node, the elder node number is in the front and the younger node number is in the rear is ensured. A Lagrange's dynamical equation described by any node at a hinge coordinate is acquired by using the recursive computing relation of theequivalent inertia matrix and the equivalent generalized force between parent and child nodes, the elder node influence coefficient recursion computing relation and the younger node influence coefficient recursion computing relation. The method has the characteristics of being simple, intuitive, and capable of being applied to automatic set computation of the Lagrange's dynamical equation of thesatellite system with the arbitrary tree shape.

Description

technical field [0001] The invention belongs to the field of space vehicle dynamics modeling and calculation, and in particular relates to a satellite multi-body dynamics system calculation method and system based on parent-child relationship iteration. Background technique [0002] In order for the satellite to realize the calculation of any tree-shaped satellite dynamic system and facilitate the analysis and design of the control system, the satellite system needs to directly obtain the Lagrangian dynamic equation described by the hinge coordinates. However, there are too many zero-element matrix calculations in the transmission method described by the channel matrix, and the calculation speed is fast by using the hinge force recursive method, but it can only perform numerical calculations and cannot generate mathematical models for control system design and analysis. Contents of the invention [0003] The technical problem solved by the present invention is: to overcome...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/06
Inventor 林波邱乐德王典军曾海波武云丽沈莎莎刘江张银
Owner BEIJING INST OF CONTROL ENG
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