Abstract：Here, an adaptive robust active vibration control approach based on expected compensation for a flexible spacecraft with bonded smart materials during its large-angle attitude rapid maneuvers was proposed. The proposed approach was composed of path planning technique, attitude controller designed based on the expected compensation adaptive robust control (ECARC) and active vibration controller designed based on the positive position feedback (PPF) control. The angular position path of the spacecraft’s central rigid body which was not easy to excite vibration of flexible accessories was obtained with the path planning technique, an ECARC attitude controller was used to track the planned path. An expected compensation-based adaptation law was utilized to reduce the effect of measurement noise so that the regressor was calculated only with the expected path information. Meanwhile, a multi-mode PPF active vibration controller was applied to add accessories damping and suppress higher frequency vibrations of flexible accessories. Simulation results demonstrated the effectiveness of the proposed approach. It was shown that the proposed approach can not only improve dynamic and steady state performances of the spacecraft during its large-angle attitude rapid maneuvers, but also effectively suppress vibrations of its flexible accessories.
余臻1，郭毓1，王璐1. 基于期望补偿的挠性航天器自适应鲁棒主动振动控制[J]. 振动与冲击, 2017, 36(24): 230-236.
YU Zhen1, GUO Yu1, WANG Lu1. Adaptive robust active vibration control of flexible spacecraft based on expected compensation. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(24): 230-236.
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