Active-Braid, a Bioinspired Continuum Manipulator
Taimoor Hassan, Matteo Cianchetti, Barbara Mazzolai, Cecilia Laschi, Paolo Dario
Abstract
This letter reports the concept and design of the active-braid, a novel bioinspired continuum manipulator with the ability to contract, extend, and bend in three-dimensional space with varying stiffness. The manipulator utilizes a flexible crossed-link helical array structure as its main supporting body, which is deformed by using two radial actuators and a total of six longitudinal tendons, analogously to the three major types of muscle layers found in muscular hydrostats. The helical array structure ensures that the manipulator behaves similarly to a constant volume structure (expanding while shortening and contracting while elongating). Numerical simulations and experimental prototypes are used in order to evaluate the feasibility of the concept.
BibTeX
@inproceedings{ral2017_activebraidabioi,
title = {Active-Braid, a Bioinspired Continuum Manipulator},
author = {Taimoor Hassan and Matteo Cianchetti and Barbara Mazzolai and Cecilia Laschi and Paolo Dario},
booktitle = {RA-L 2017},
year = {2017}
}