Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft

Modern spacecraft usually have larger and more flexible appendages whose vibration becomes more and more prominent, and it has a great influence on the precision of spacecraft attitude. Therefore, the cooperative control of attitude maneuvering and structural vibration of the system has become a sig...

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Main Authors: Guiqin He, Dengqing Cao
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/12/4/167
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author Guiqin He
Dengqing Cao
author_facet Guiqin He
Dengqing Cao
author_sort Guiqin He
collection DOAJ
description Modern spacecraft usually have larger and more flexible appendages whose vibration becomes more and more prominent, and it has a great influence on the precision of spacecraft attitude. Therefore, the cooperative control of attitude maneuvering and structural vibration of the system has become a significant issue in the spacecraft design process. We developed a low-dimensional and high-precision mathematical model for a large-scale flexible spacecraft (LSFS) equipped with a pair of hinged solar arrays in this paper. The analytic global modes are used to obtain the rigid–flexible coupling discrete dynamic model, and the governing equations with multiple DOFs for the system are derived by using the Hamiltonian principle. The rigid–flexible coupled oscillating responses of LSFS under the three-axis attitude-driving torque pulse during the in-orbit attitude maneuvering process are investigated. A study on the flexibility of the hinge was also conducted. Based on the simplified and accurate dynamic model of the system, we can obtain a state-space model for LSFS conveniently, and the cooperative control schemes for rigid motion and flexible oscillation control are designed by using the LQR, PD, and PD + IS algorithms. The simulation results show that three cooperative controllers can realize spacecraft attitude adjustment and synchronously eliminate flexible oscillation successfully. By comparison, the PD + IS controller is simpler so that it is suitable for the real-time attitude–vibration cooperative control of spacecraft.
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spelling doaj.art-2d2633c04dbe40b6959e0ce817adddf02023-11-17T17:51:19ZengMDPI AGActuators2076-08252023-04-0112416710.3390/act12040167Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible SpacecraftGuiqin He0Dengqing Cao1School of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaModern spacecraft usually have larger and more flexible appendages whose vibration becomes more and more prominent, and it has a great influence on the precision of spacecraft attitude. Therefore, the cooperative control of attitude maneuvering and structural vibration of the system has become a significant issue in the spacecraft design process. We developed a low-dimensional and high-precision mathematical model for a large-scale flexible spacecraft (LSFS) equipped with a pair of hinged solar arrays in this paper. The analytic global modes are used to obtain the rigid–flexible coupling discrete dynamic model, and the governing equations with multiple DOFs for the system are derived by using the Hamiltonian principle. The rigid–flexible coupled oscillating responses of LSFS under the three-axis attitude-driving torque pulse during the in-orbit attitude maneuvering process are investigated. A study on the flexibility of the hinge was also conducted. Based on the simplified and accurate dynamic model of the system, we can obtain a state-space model for LSFS conveniently, and the cooperative control schemes for rigid motion and flexible oscillation control are designed by using the LQR, PD, and PD + IS algorithms. The simulation results show that three cooperative controllers can realize spacecraft attitude adjustment and synchronously eliminate flexible oscillation successfully. By comparison, the PD + IS controller is simpler so that it is suitable for the real-time attitude–vibration cooperative control of spacecraft.https://www.mdpi.com/2076-0825/12/4/167large-scale flexible spacecrafthinged multi-panel solar arraylow-dimensional and high-precision modelattitude maneuveringcooperative control
spellingShingle Guiqin He
Dengqing Cao
Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
Actuators
large-scale flexible spacecraft
hinged multi-panel solar array
low-dimensional and high-precision model
attitude maneuvering
cooperative control
title Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
title_full Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
title_fullStr Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
title_full_unstemmed Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
title_short Dynamic Modeling and Attitude–Vibration Cooperative Control for a Large-Scale Flexible Spacecraft
title_sort dynamic modeling and attitude vibration cooperative control for a large scale flexible spacecraft
topic large-scale flexible spacecraft
hinged multi-panel solar array
low-dimensional and high-precision model
attitude maneuvering
cooperative control
url https://www.mdpi.com/2076-0825/12/4/167
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AT dengqingcao dynamicmodelingandattitudevibrationcooperativecontrolforalargescaleflexiblespacecraft