论文标题

与环境互动的时间优势轨迹计划

Time-Optimal Trajectory Planning with Interaction with the Environment

论文作者

Petrone, Vincenzo, Ferrentino, Enrico, Chiacchio, Pasquale

论文摘要

沿规定路径的最佳运动计划可以通过几种技术来解决,但是大多数技术并未考虑到与环境接触时最终效用器所施加的扳手。当无法获得环境的动态模型时,就不存在合并方法来考虑相互作用的效果。无论要优化的特定性能指数如何,本文都提出了一种策略,将外部扳手包括在最佳计划算法中,考虑到任务规格。此过程是针对最小时间轨迹实例化的,并在接纳控制下执行交互任务的真实机器人进行了验证。结果证明,最终效应器扳手的包含会影响计划的轨迹,实际上改变了操纵器的动态能力。

Optimal motion planning along prescribed paths can be solved with several techniques, but most of them do not take into account the wrenches exerted by the end-effector when in contact with the environment. When a dynamic model of the environment is not available, no consolidated methodology exists to consider the effect of the interaction. Regardless of the specific performance index to optimize, this article proposes a strategy to include external wrenches in the optimal planning algorithm, considering the task specifications. This procedure is instantiated for minimum-time trajectories and validated on a real robot performing an interaction task under admittance control. The results prove that the inclusion of end-effector wrenches affect the planned trajectory, in fact modifying the manipulator's dynamic capability.

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