二维码(扫一下试试看!) | 自由漂浮空间双臂机器人动目标抓捕控制 | Control of Free-Floating Space Dual-Arm Robot for Capturing Moving Targets | 投稿时间:2018-08-23 | DOI:10.15918/j.tbit1001-0645.2019.06.011 | 中文关键词:双臂协调空间双臂机器人阻抗控制目标抓捕 | English Keywords:dual-arm coordinationspace dual-arm robotimpedance controltarget capture | 基金项目: | | 摘要点击次数:687 | 全文下载次数:611 | 中文摘要: | 针对空间双臂系统捕获移动目标任务,建立了自由漂浮空间双臂机器人系统动力学模型.针对开链追踪过程,利用自适应方法同时实现速度估计和目标追踪的收敛,可保证双臂同时捕获目标,并设计了基于耦合、漂浮模型的反馈控制律;针对闭链对接过程,根据运动约束协调规划双臂的运动,并利用反馈线性化法设计了一种自由浮动空间机器人双臂协调阻抗控制方法,使双臂并联系统的阻抗可以独立配置.仿真结果表明,相比纯追踪,该追踪方法捕获时间更短,轨迹更平直,闭链过程中有效降低了内力,保证了对接的平稳. | English Summary: | A dynamic model of free-floating dual-arm robot system was established for the task of capturing a moving target. For the tracking process of open-chain, the adaptive method was used to achieve the convergence of speed estimation and target tracking at the same time,to ensure that the two arms captured the target simultaneously. At the same time, the feedback control law concerning the coupling and floating model was designed. For the docking process of closed-chain, the movement of the dual arm was planned coordinately according to the constraints. Meanwhile, a coordinated impedance control algorithm for dual-arm space robot system was designed based on feedback linearization, with which the impedance of the dual-arm parallel system could be independently configured. The simulation shows that compared with pure tracking, the tracking method achieves a rapider capture process and a straighter track, and the internal force is effectively cut down and the docking is smoother in the closed chain process due to the dual-arm impedance control. | 查看全文查看/发表评论下载PDF阅读器 | |
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