Design of a Lightweight and Deployable Soft Robotic Arm

被引:13
作者
Palmieri, Pierpaolo [1 ]
Melchiorre, Matteo [1 ]
Mauro, Stefano [1 ]
机构
[1] Politecn Torino, Dept Mech & Aerosp Engn, I-10129 Turin, Italy
关键词
soft robotics; space robotics; flexible robotics; dynamic modeling; inflatable structures; FABRICATION; KINEMATICS;
D O I
10.3390/robotics11050088
中图分类号
TP24 [机器人技术];
学科分类号
080202 ; 1405 ;
摘要
Soft robotics represents a rising trend in recent years, due to the ability to work in unstructured environments or in strict contact with humans. Introducing soft parts, robots can adapt to various contexts overcoming limits relative to the rigid structure of traditional ones. Main issues of soft robotics systems concern the relatively low force exertion and control complexity. Moreover, several fields of application, as space industry, need to develop novel lightweight and deployable robotic systems, that can be stored into a relatively small volume and deployed when required. In this paper, POPUP robot is introduced: a soft manipulator having inflatable links and rigid joints. Its hybrid structure aims to match the advantages of rigid robots and the useful properties of having a lightweight and deployable parts, ensuring simple control, low energy consumption and low compressed gas requirement. The first robot prototype and the system architecture are described highlighting design criteria and effect of internal pressure on the performances. A pseudo-rigid body model is used to describe the behavior of inflatable links looking forward to control design. Finally, the model is extended to the whole robot: multi-body simulations are performed to highlight the importance of suitable sensor equipment for control development, proposing a visual servoing solution.
引用
收藏
页数:16
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