Asymptotically Optimal Design of Piecewise Cylindrical Robots using Motion Planning
Asymptotically Optimal Design of Piecewise Cylindrical Robots using Motion Planning
复制标题
使用运动规划的分段圆柱形机器人的渐近优化设计
DOI:
10.15607/rss.2017.xiii.020
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
R. Alterovitz
中科院分区:
文献类型:
--
作者:
Cenk Baykal;R. Alterovitz
In highly constrained settings, e.g., a tentacle-like medical robot maneuvering through narrow cavities in the body for minimally invasive surgery, it may be difficult or impossible for a robot with a generic kinematic design to reach all desirable targets while avoiding obstacles. We introduce a design optimization method to compute kinematic design parameters that enable a single robot to reach as many desirable goal regions as possible while avoiding obstacles in an environment. We focus on the kinematic design of piecewise cylindrical robots, robotic manipulators whose shape can be modeled via cylindrical components. Our method appropriately integrates sampling-based motion planning in configuration space into stochastic optimization in design space so that, over time, our evaluation of a design’s ability to reach goals increases in accuracy and our selected designs approach global optimality. We prove the asymptotic optimality of our method and demonstrate performance in simulation for (i) a serial manipulator and (ii) a concentric tube robot, a tentaclelike medical robot that can bend around anatomical obstacles to safely reach clinically-relevant goal regions.
DOI:
10.1115/1.4035117
发表时间:
2017-02-01
影响因子:
2.6
作者:
Plecnik, Mark M.;Haldane, Duncan W.;Fearing, Ronald S.
通讯作者:
Fearing, Ronald S.
影响因子:
0.9
作者:
de Oliveira, Thiago R.;Lemos, Nivaldo A.
通讯作者:
Lemos, Nivaldo A.