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| 1 | 柔性机械臂的振动测量和控制研究进展综述显示文摘柔性机械臂通常具有柔性关节和/或连杆.在过去的40多年里,柔性机械臂的研究取得了长足的进展.本文综述了柔性机械臂在动力学建模方法、振动的传感器测量系统和控制算法研究方面的发展现状、研究热点和前沿进展.首先,简要说明了柔性机械臂的优缺点和复杂性,介绍了柔性关节机器人和柔性连杆机械臂的建模方法和技术;其次,综述了不同振动测量系统在柔性机器人中的应用和特点,并比较了不同测量方法在柔性机械臂振动测量应用中的优缺点;然后,重点评述了文献中提出的柔性机械臂振动控制方法和控制算法;并分析了并联柔性机器人自激振动及其控制的研究现状;最后,对未来研究工作的发展趋势,面临的问题和挑战进行了展望. | 邱志成 | 2021 | 信息与控制2021，50，2： | 11 |
| 2 | Adaptive sliding mode output tracking control based-FODOB for a class of uncertain fractional-order nonlinear time-delayed systems显示文摘An adaptive sliding mode control(ASMC) method, based on fractional-order disturbance-observer(FODOB), is presented for a class of fractional-order nonlinear time-delay systems(FONTDS) with uncertainties to solve the target output tracking problem.The external disturbances are estimated by FODOB, and the unknown internal perturbations of the system are adaptively estimated by sliding mode control(SMC). Furthermore, Gronwall's inequality approach is used to ensure that the output tracking error is uniformly bounded for FONTDS. Firstly, a fractional-order sliding mode control(FOSMC) based FODOB is proposed for a fractional-order linear time-delay system(FOLTDS). Secondly, combined with adaptive estimation, the ASMC of FONTDS is studied. Finally, a numerical example of FONTDS is used to verify the effectiveness of the proposed methods. | WANG Zhen WANG XinHe XIA JianWei SHEN Hao MENG Bo | 2020 | Science China(Technological Sciences)2020，63，9： | 5 |
| 3 | Precise monocular vision-based pose measurement system for lunar surface sampling manipulator显示文摘Space manipulator has been playing an increasingly important role in space exploration due to its flexibility and versatility. This paper is to design a vision-based pose measurement system for a four-degree-of-freedom(4-DOF) lunar surface sampling manipulator relying on a monitoring camera and several fiducial markers. The system first employs double plateaus histogram equalization for the markers to improve the robustness to varying noise and illumination. The markers are then accurately extracted in sub-pixel based on template matching and curved surface fitting. Finally, given the camera parameters and 3D reference points, the pose of the manipulator end-effector is solved from the 3D-to-2D point correspondences by combining a plane-based pose estimation method with rigid-body transformation. Experiment results show that the system achieves highprecision positioning and orientation performance. The measurement error is within 3 mm in position, and 0.2° in orientation,meeting the requirements for space manipulator operations. | WANG Gang SHI ZhongChen SHANG Yang SUN XiaoLiang ZHANG WenLong YU QiFeng | 2019 | Science China(Technological Sciences)2019，62，10： | 3 |
| 4 | 柔性机械系统分布参数建模及其控制的研究与进展显示文摘近年来,柔性机械系统以其轻量化、低耗能、操作灵活等优势在航空航天、海底勘探、机器人、机械制造等领域得到了广泛关注,其建模和控制问题也成为了当今国内外学者研究的热点问题。在本文中,首先介绍了柔性机械系统的部分应用背景,紧接着汇总了柔性机械系统常见的分布参数建模方法、控制策略、控制方法以及实际工程问题。最后,对柔性机械系统分布参数建模与控制问题进行了总结,并对未来的研究方向进行了展望。 | 季宁 刘金琨 | 2022 | 信息与控制2022，51，2： | 0 |
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