Variable-gain control for continuum robots based on velocity sensitivity
文献类型:期刊论文
作者 | Zhang, Xu; Liu, Yue; Branson, David T.; Yang CH(杨铖浩); Dai JS(戴建生); Kang RJ(康荣杰) |
刊名 | Mechanism and Machine Theory |
出版日期 | 2022 |
卷号 | 168页码:1-17 |
ISSN号 | 0094-114X |
关键词 | Continuum robot Kinematic model Variable gain control Velocity sensitivity |
产权排序 | 1 |
英文摘要 | Kinematic control for continuum robots usually involves an inverse model to provide actuator positions according to the desired end-tip position, as well as a servo controller at the actuator level. The resulting control performance of a continuum robot is then related to its kinematic characteristics that vary at different configurations. In this paper, a kinematic model for a typical rod-driven continuum robot is presented. Following this, a kinematic parameter, velocity sensitivity, is proposed to evaluate the kinematic characteristics of the continuum robot, indicating the contribution of the individual actuators to the instant movement of the end-tip when tracking a given path. Next, a variable gain control strategy is presented to tune the servo controller with respect to the varying velocity sensitivity along the path, reducing the fluctuation of the tracking errors in real time. The simulated and experimental results show that the presented methods can effectively smooth the movement of the continuum robot over its workspace by considering the coordination between the kinematic and servo controllers. |
资助项目 | Natural Science Foundation of China[51875393] ; National Key R&D Program of China[2018YFB1304600] ; National Key R&D Program of China[2019YFB1309800] ; Tianjin Key Program of Science and Technology[19YFZCCG00410] ; State Key Laboratory of Robotics Foundation-China[2019-O04] |
WOS研究方向 | Engineering |
语种 | 英语 |
WOS记录号 | WOS:000718165300002 |
资助机构 | Natural Science Foundation of China (Grant No. 51875393) ; National Key R&D Program of China (Grant No. 2018YFB1304600 and 2019YFB1309800) ; Tianjin Key Program of Science and Technology (Grant No. 19YFZCCG00410) ; State Key Laboratory of Robotics Foundation-China (Grant No. 2019-O04) |
源URL | [http://ir.sia.cn/handle/173321/29879] |
专题 | 沈阳自动化研究所_其他 |
通讯作者 | Kang RJ(康荣杰) |
作者单位 | 1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China 2.Centre for Robotics Research, King's College LondonUK, United Kingdom 3.Faculty of Engineering, University of NottinghamUK, United Kingdom 4.Key Laboratory of Mechanism Theory and Equipment Design of the Ministry of Education, Centre for Advanced Mechanisms and Robotics, Tianjin University, China |
推荐引用方式 GB/T 7714 | Zhang, Xu,Liu, Yue,Branson, David T.,et al. Variable-gain control for continuum robots based on velocity sensitivity[J]. Mechanism and Machine Theory,2022,168:1-17. |
APA | Zhang, Xu,Liu, Yue,Branson, David T.,Yang CH,Dai JS,&Kang RJ.(2022).Variable-gain control for continuum robots based on velocity sensitivity.Mechanism and Machine Theory,168,1-17. |
MLA | Zhang, Xu,et al."Variable-gain control for continuum robots based on velocity sensitivity".Mechanism and Machine Theory 168(2022):1-17. |
入库方式: OAI收割
来源:沈阳自动化研究所
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