A geometric and unified approach for modeling soft-rigid multi-body systems with lumped and distributed degrees of freedom

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Abstract

In this paper, a geometric and unified model of soft-rigid multi-body systems is presented, based on a discrete Cosserat approach of the soft-body dynamics. The model is in fact a generalization to soft and hybrid systems of the geometric theory of rigid robotics characterized by the exponential map. A generalization of the recursive Newton-Euler algorithm is also presented, able to solve inverse and forward dynamic problems with linear O(N) complexity. The proposed model provides several improvements with respect to the existing flexible multi-body models, which make it particularly suitable to study the dynamics of modern soft robots as shown for a multi-body system inspired by motile bacteria.

Original languageBritish English
Title of host publication2018 IEEE International Conference on Robotics and Automation, ICRA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1567-1574
Number of pages8
ISBN (Electronic)9781538630815
DOIs
StatePublished - 10 Sep 2018
Event2018 IEEE International Conference on Robotics and Automation, ICRA 2018 - Brisbane, Australia
Duration: 21 May 201825 May 2018

Publication series

NameProceedings - IEEE International Conference on Robotics and Automation
ISSN (Print)1050-4729

Conference

Conference2018 IEEE International Conference on Robotics and Automation, ICRA 2018
Country/TerritoryAustralia
CityBrisbane
Period21/05/1825/05/18

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