Article
Acoustics
Feng Liu, Baozeng Yue, Bole Ma, Cong Feng
Summary: This paper proposes a wave-based attitude controller (WBAC) for high-quality attitude control and large-amplitude slosh suppression during three-axial large-angle maneuvers of liquid-filled spacecraft. The sloshing dynamics is modeled using a spherical pendulum, and the dynamics equations of the system are derived using the Lagrangian formulation. An improved WBAC is designed by adding derivative control and gravity-gradient-torque compensation to the wave-based control law. Simulation results demonstrate the good performance of the WBAC in reducing completion time, suppressing angular velocity jitter, and accelerating slosh suppression.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Automation & Control Systems
Ruiyun Qi, Xinlei Dong, Daikun Chao, Yingying Wang
Summary: This paper presents a novel constrained attitude tracking control and active sloshing suppression scheme for liquid-filled spacecraft with large liquid sloshing. It considers the force and torque generated by liquid sloshing as nonlinear functions of spacecraft states and suppresses liquid sloshing by limiting the magnitudes of angular velocity, control torque, and its changing rate.
Article
Engineering, Aerospace
Lu Yu, Yue Baozeng, Ma Bole
Summary: This paper studies and validates an equivalent dynamic model for large-amplitude liquid sloshing, including the MPBM model with gravity effects and an equivalent model for non-sloshing liquid, validating its effectiveness through examples and experimental verification.
Article
Engineering, Aerospace
Jooho Park, Hyochoong Bang, Kyun-Sang Park, Seon-Ho Lee
Summary: This paper proposes a cascade nonlinear state observer based on the sliding mode theory to estimate the unmeasurable slosh variables in a liquid propellant tank during spacecraft maneuver. The effectiveness of the proposed method is demonstrated through simulations and compared with other methods.
Article
Acoustics
Xiaojuan Song, Xuesong Li, Shufeng Lu, Xiaowen Song
Summary: This paper investigates the problem of robust, angular velocity-free control and fault-tolerant control for liquid-filled flexible spacecraft attitude maneuver subject to unknown external disturbances, state variables measurement uncertainty, and actuator failures. The liquid sloshing effect and flexible attachments are modeled as two-order spring-mass and Euler-Bernoulli beams, respectively. A fault-tolerant control method against percussive disturbances is proposed, and its robustness performance is analyzed. A new fault-tolerant control method based on a nonlinear disturbance observer is also proposed to deal with both continuous and percussive disturbances.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Engineering, Aerospace
Zhuo Wang, Rui Xu
Summary: To address the challenge of rapid on-orbit attitude maneuver for spacecraft, a method named Constraint Path Mapping (CPM) is proposed. The method aims to efficiently plan and improve the processing of complex attitude constraints by designing an attitude constraint safety-mapping strategy.
AEROSPACE SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Aerospace
Yue Sun, Yueyong Lyu, Yanning Guo, Youmin Gong, He Zhu
Summary: This paper investigates a predefined-time attitude stabilization method for spacecraft with complex structures, liquid sloshing, and flexible vibrations during orbital maneuver under input saturation. The attitude dynamics model of a liquid-filled flexible spacecraft is constructed, and the disturbances from solar panel vibration and liquid sloshing are treated as disturbances in the controller design. An adaptive predefined-time control scheme is proposed using sliding mode control theory, where a predefined-time convergent sliding surface and reaching law are designed for fast convergence rate. A novel adaptive algorithm is developed to handle the disturbances from liquid sloshing and flexible vibration, ensuring convergence to a small neighborhood of equilibrium. Additionally, a new auxiliary system is constructed to address the effects of input saturation. A simulation case is performed to verify the feasibility and advantages of the proposed algorithm. (c) 2022 COSPAR. Published by Elsevier B.V. All rights reserved.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Engineering, Aerospace
Liu Zhang, Quan-Zhi Liu, Guo-Wei Fan, Xue-Ying Lv, Yu Gao, Yang Xiao
Summary: This paper addresses the issue of control performance degradation caused by the vibration of flexible accessories and external disturbance during the attitude maneuvering process of flexible spacecraft. A parametric design method for attitude maneuver control (AMC) based on disturbance observer is proposed to enhance the system's anti-interference ability and control accuracy.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Aerospace
Michael A. Marshall, Sergio Pellegrino
Summary: Traditional spacecraft design relies on stiff structures, but recent trends favor lighter and more flexible architectures. This paper proposes a method to determine the performance limits of maneuvering flexible spacecraft based on structure, and finds that other constraints are often more restrictive than the structure's dynamics.
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS
(2023)
Article
Engineering, Aerospace
Hanqing He, Peng Shi, Yushan Zhao
Summary: This paper proposes a method for attitude maneuver path planning considering time-varying pointing constraints. The improved random tree method is used to obtain rotational pointing nodes, and attitude quaternion nodes are generated based on these nodes. Finally, quaternion interpolation functions are utilized to calculate angular velocity and control torque for a continuous attitude curve passing through quaternion nodes.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Automation & Control Systems
Xiuyun Zhang, Qun Zong, Liqian Dou, Bailing Tian, Wenjing Liu
Summary: This article investigates the large-angle attitude maneuver trajectory design and tracking control for flexible spacecraft with slosh structure under attitude measurement errors and actuator faults. By establishing a new indicator function to optimize the attitude trajectory while satisfying multiple physical constraints, a novel adaptive multivariable command filtering backstepping fault-tolerant controller is proposed to achieve finite-time attitude tracking to the optimized trajectory, despite the presence of measurement errors and actuator faults.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Mechanics
Qiong-Yao Wang, Li Jiang, Mu Chai, Hui Huang, Jian-Hua Tang
Summary: A numerical analysis is conducted to investigate fluid slosh within a partially filled horizontal cylindrical tank with an elastic membrane restraining the free surface. The addition of the membrane can reduce slosh amplitude and shift the slosh frequency, improving the antislosh effectiveness of the tank.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Automation & Control Systems
Rui-Qi Dong, Ai-Guo Wu, Ying Zhang, Guang-Ren Duan
Summary: This paper addresses attitude maneuver control for rigid spacecraft without unwinding, based on modified Rodrigues parameters (MRPs). A control system model is constructed with a selection logic for the MRP set, a sliding function is presented for stability, and a sliding mode control law is developed. The proposed control scheme ensures unwinding-free performance and avoids chattering phenomena, as demonstrated in numerical simulations.
Article
Mathematics, Interdisciplinary Applications
Xiao Fuzheng, Chen Liqun
Summary: This paper investigates the control of attitude for a spherical liquid-filled spacecraft using high-order fully actuated system approaches. The dynamic equation, based on the coupling between the rigid body and fluid, is formulated in terms of the spacecraft's Euler angles and the liquid fuel's angular velocities. Three input selections are proposed according to the dynamic equation. In the case of one control input, the dynamic equation is transformed into third-order or second-order differential equations of the Euler angles using the high-order fully actuated system approaches. A control law is then designed to track the target, and its effectiveness is demonstrated through numerical simulations.
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY
(2022)
Article
Automation & Control Systems
Rui-Qi Dong, Ai-Guo Wu, Ying Zhang
Summary: This article presents an anti-unwinding attitude maneuver control method for rigid spacecraft, which ensures unwinding-free performance by designing a novel switching function and introducing a dynamic parameter before reaching the switching surface. Additionally, a boundary layer is introduced to avoid chattering phenomenon in the control system.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2022)
