Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-cooperative target rolling motion spin-up simulation system and method

A non-cooperative target, simulation system technology, applied in the field of spacecraft attitude and ground simulation control, can solve problems such as unloading control torque gyroscope, and achieve the effect of reducing payload, reducing design difficulty, and reducing leveling difficulty

Active Publication Date: 2021-08-13
HARBIN INST OF TECH
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problem that the position of the center of mass of the existing non-cooperative target model will change during the process of jet attitude control and the angular momentum of the moment gyroscope needs to be frequently unloaded, the present invention provides a non-cooperative target rolling motion spin-up simulation system and method

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
  • Non-cooperative target rolling motion spin-up simulation system and method
  • Non-cooperative target rolling motion spin-up simulation system and method
  • Non-cooperative target rolling motion spin-up simulation system and method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0072] Taking the non-cooperative target inertia matrix as

[0073] When spinning up, the rotating magnetic field source 3 and the upper surface of the rolling non-cooperative target 4 form an inclination angle of 15° to obtain nutation moment. When spinning, the distance between the center position of the rotating magnetic field source 3 and the surface of the rolling non-cooperative target 4 is 0.1m, and the excitation speed of the rotating magnetic field source 3 is 300r / min. image 3 Shown is a schematic diagram of the three-axis angular velocity after the non-cooperative target spins. It can be seen from the figure that the amplitude of the lateral angular velocity ωx and ωz of the target increases gradually during the spinning process. Figure 4 Shown is a schematic diagram of the angle between the spin axis of the non-cooperative target and the vertical direction. It can be seen from the figure that the nutation angle continues to increase, and there is an obvious nut...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a non-cooperative target rolling motion spin-up simulation system and method, solves the problems that the mass center position of an existing non-cooperative target model is changed in the jet attitude control process and the angular momentum of a control moment gyroscope needs to be frequently unloaded, and belongs to the field of spacecraft attitude ground simulation control. According to the invention, a rotating magnetic field source is fixed to a control tail end and located above a rolling non-cooperative target; the surface of the rolling non-cooperative target adopts a honeycomb aluminum plate shell; the rotating magnetic field source can induce electromagnetic torque on the honeycomb aluminum plate shell of the rolling non-cooperative target; when the inclination angle beta between the magnetic field source and the rolling non-cooperative target surface is within the range of 10-20 degrees, the control system controls the value of the tail end rotating speed omega s according to eta: when the absolute value of eta is less than 45 degrees, [omega]s is equal to A, and when the absolute value of eta is greater than or equal to 45 degrees, [omega]s is equal to 0; eta represents an included angle between a vector Ht * [omega]s * Ht and a vector Ht * n * Ht, Ht represents a spinning axis vector of the rolling non-cooperative target, and n represents an angular momentum vector of the rolling non-cooperative target.

Description

technical field [0001] The invention relates to a non-cooperative target roll motion spin-up simulation system and method driven by non-contact electromagnetic force, and belongs to the field of spacecraft attitude ground simulation control. Background technique [0002] Non-cooperative targets such as invalid spacecraft occupy a large number of precious orbital resources, and it is imminent to actively clear them. One of the difficulties in the removal of non-cooperative targets lies in their irregular tumbling motion. The causes of tumbling motion are complex, including residual angular momentum before failure of non-cooperative targets, fuel sloshing, energy dissipation and many other reasons. When actively clearing non-cooperative targets, ground simulation experiments are an essential link. First, ground simulation of the three-dimensional tumbling motion of non-cooperative targets is required. [0003] A common method is to design a non-cooperative target rolling moti...

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): B64G7/00
CPCB64G7/00Y02T90/00
Inventor 路勇刘晓光
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com