Jinhe Yang , Xuewen Wang , Ce Xu , Yi Yu , Tongjian Guo
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引用次数: 0
Abstract
To enhance the precision of on-orbit assembly for large space optical telescopes, the control of attitude motion in the Autonomous Space-based Simulator (ASS) is imperative. This paper presents a robust finite-time trajectory tracking control method aimed at improving the position and attitude tracking performance of ASS. Considering the dynamic characteristics inherent in ASS, we introduce an improved non-singular fast terminal sliding mode controller (INFTSMC) incorporating an adaptive fuzzy mechanism to attain finite-time error convergence and robust control. The adaptive fuzzy logic control (AFLC) method yields an equivalent gain, eliminating discontinuous switching in terminal sliding mode control (TSMC). This reduction minimizes chattering in control inputs and compensates for uncertainties and time-varying disturbances within the dynamic model. The proposed method’s effectiveness is validated through comprehensive simulation and experimental studies.
为了提高大型空间光学望远镜的在轨组装精度，必须对天基自主模拟器（ASS）中的姿态运动进行控制。本文提出了一种稳健的有限时间轨迹跟踪控制方法，旨在提高 ASS 的位置和姿态跟踪性能。考虑到 ASS 固有的动态特性，我们引入了一种改进的非矢量快速终端滑模控制器（INFTSMC），其中结合了自适应模糊机制，以实现有限时间误差收敛和鲁棒控制。自适应模糊逻辑控制（AFLC）方法产生了等效增益，消除了终端滑模控制（TSMC）中的不连续切换。这种减少最大程度地降低了控制输入中的颤振，并补偿了动态模型中的不确定性和时变干扰。通过全面的模拟和实验研究，验证了所提方法的有效性。
期刊介绍：
Mechatronics is the synergistic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and manufacturing processes. It relates to the design of systems, devices and products aimed at achieving an optimal balance between basic mechanical structure and its overall control. The purpose of this journal is to provide rapid publication of topical papers featuring practical developments in mechatronics. It will cover a wide range of application areas including consumer product design, instrumentation, manufacturing methods, computer integration and process and device control, and will attract a readership from across the industrial and academic research spectrum. Particular importance will be attached to aspects of innovation in mechatronics design philosophy which illustrate the benefits obtainable by an a priori integration of functionality with embedded microprocessor control. A major item will be the design of machines, devices and systems possessing a degree of computer based intelligence. The journal seeks to publish research progress in this field with an emphasis on the applied rather than the theoretical. It will also serve the dual role of bringing greater recognition to this important area of engineering.
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