Dynamic and sliding mode control of space netted pocket system capturing and attitude maneuver non-cooperative target
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Published:2022-08-30
Issue:2
Volume:13
Page:751-760
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ISSN:2191-916X
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Container-title:Mechanical Sciences
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language:en
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Short-container-title:Mech. Sci.
Author:
Tang Chao,Huang Zhuoran,Wei Cheng,Zhao Yang
Abstract
Abstract. Similar to a space flying net, the capture field of the space
netted pocket system is large and it can be applied to capture space
non-cooperative targets flexibly. To maintain the stability of the space
netted pocket system, eight inflatable rods are used as the supporting
structure of the net surface. In this paper, a space netted pocket system is
designed and modeled. Based on ANCF (absolute nodal coordinate formulation),
a dynamic model of the complex space rope net system is established, and
then an accurate model of closing rope considering the variable length is
derived by introducing mass flow element. A double closed-loop sliding
control method is designed to maintain the stable attitude of the service
spacecraft. An extended observer is applied to estimate and compensate for
the disturbances due to the uncertainty of the contact and flexibility in
the system. Finally, the dynamic model and control method is verified
through the simulation of the virtual prototype. Results show that the
service spacecraft can maintain the attitude stability during target
captured process and can track the desired angle during attitude maneuver.
The flexible deformation and collision cause great disturbance to the
service spacecraft, and the extended observer can improve the control
accuracy from 10−3 to 10−4.
Funder
National Natural Science Foundation of China Postdoctoral Scientific Research Development Fund of Heilongjiang Province
Publisher
Copernicus GmbH
Subject
Industrial and Manufacturing Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering,Control and Systems Engineering
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