Flexible part orientation acquiring method under attitude orbit control maneuvering action

A technology of flexible components and acquisition methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to meet engineering requirements, poor antenna beam pointing errors, and inability to give antenna beam pointing changes.

Active Publication Date: 2017-09-26
BEIJING INST OF SPACECRAFT SYST ENG
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the beam pointing analysis of the free-floating platform and the vibration process of the antenna structure, only the beam pointing analysis under the static antenna profile cannot give t...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible part orientation acquiring method under attitude orbit control maneuvering action
  • Flexible part orientation acquiring method under attitude orbit control maneuvering action
  • Flexible part orientation acquiring method under attitude orbit control maneuvering action

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] The basic idea of ​​the present invention is: a method for obtaining the pointing of flexible components under the action of attitude-orbit control maneuvers. Firstly, the structural finite element modeling of the reflector antenna is carried out, and then the rigid-flexible coupling dynamic model of the satellite is established to obtain the vibration mode of the reflector antenna. vector; then establish the satellite attitude control model, and then form the satellite dynamics model under the closed-loop control with the satellite rigid-flexible coupling dynamic model; finally, establish the expression of the antenna radiation field strength in the antenna vibration mode space, and establish the whole satellite On-orbit dynamics-attitude control-antenna radiation comprehensive model of the system; the time-varying modal coordinates of the satellite antenna vibration are obtained from the simulation of the satellite’s on-orbit work excitation data, and the on-orbit work ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A flexible part orientation acquiring method under attitude orbit control maneuvering action includes: performing structural finite element modeling on a reflective plane antenna to build a satellite rigid-flexible coupling dynamics model, and acquiring a vibration mode vector of the reflective plane antenna; building a satellite attitude control action model, and enable the same and the satellite rigid-flexible coupling dynamics model to form a satellite dynamics model; establishing an expression formula of antenna radiation field intensity under antenna vibration mode space, and building a whole satellite system on-orbit state dynamics-attitude control-antenna radiation comprehensive model; simulating according to satellite on-orbit working excitation data to acquire time change mode coordinates of antenna vibration, substituting the time change mode coordinates into the radiation field mode space expression formula, and acquiring dynamic influence change of on-orbit working mode on antenna radiation field intensity.

Description

technical field [0001] The invention relates to a method for acquiring the pointing of a flexible component under the action of an attitude-orbit control maneuver, aiming at the on-orbit working process of a large-scale expandable cable net reflector antenna, and is used in the technical field of analyzing antenna pointing changes caused by antenna vibration caused by satellite on-orbit work. Background technique [0002] With the continuous improvement of spacecraft mission requirements, the complexity of spacecraft is constantly rising, and more and more large flexible components have been implemented in orbit on spacecraft. In recent years, space-borne antennas, which are important payloads of satellites, have shown a development trend towards high precision and large-scale structures. Spaceborne large-aperture reflector antennas are typical large-scale flexible components, and my country is also developing various new spacecraft with large-scale reflector antennas. This...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F30/23
Inventor 邓润然王大轶邹元杰葛东明于登云刘绍奎朱卫红
Owner BEIJING INST OF SPACECRAFT SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap