Dynamic Grasping with a “Soft” Drone: From Theory to Practice
Title: Dynamic Grasping with a “Soft” Drone: From Theory to Practice
Authors: Joshua Fishman, Samuel Ubellacker, Nathan Hughes, Luca Carlone
Preprint:
Abstract: Rigid grippers used in existing aerial manipulators require precise positioning to achieve successful grasps and transmit large contact forces that may destabilize the drone. This limits the speed during grasping and prevents “dynamic grasping”, where the drone attempts to grasp an object while moving. On the other hand, biological systems (e.g., birds) rely on compliant and soft parts to dampen contact forces and compensate for grasping inaccuracy, enabling impressive feats.
This paper presents the first prototype of a soft drone — a quadrotor where traditional (i.e., rigid) landing gears are replaced with a soft tendon-actuated gripper to enable aggressive grasping. We provide three key contributions. First, we describe our soft drone prototype, including electro-mechanical design, software infrastructure, an
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