A New Soft RCC Device with Pneumatic Regulation

The work described in this paper aims at exploiting the characteristic of a special deformable actuator with rolling membranes to realize a device with defined Remote Center of Compliance (RCC). Starting from theoretical approaches to the definition of the RCC, the authors propose a novel and simple...

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Main Authors: Stefano Bottero, Giovanni Gerardo Muscolo, Carlo Ferraresi
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Robotics
Subjects:
Online Access:https://www.mdpi.com/2218-6581/9/4/98
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author Stefano Bottero
Giovanni Gerardo Muscolo
Carlo Ferraresi
author_facet Stefano Bottero
Giovanni Gerardo Muscolo
Carlo Ferraresi
author_sort Stefano Bottero
collection DOAJ
description The work described in this paper aims at exploiting the characteristic of a special deformable actuator with rolling membranes to realize a device with defined Remote Center of Compliance (RCC). Starting from theoretical approaches to the definition of the RCC, the authors propose a novel and simple formulation that can be applied to the soft actuator to determine its RCC. The position of the device’s RCC was determined by creating an asymmetry on the geometry of the device along its axis, i.e., by imposing a longitudinal displacement to the piston with respect to the membranes’ rest condition. FEM simulations of the device behavior were carried out and a first formulation describing the placement of the RCC by varying the operating pressure was found. Finally, a comparison of the theoretical model and FEM results is presented, validating the proposed formulation.
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spelling doaj.art-44be5213fce245d6a73b5f52c9ef5e952023-11-20T21:48:14ZengMDPI AGRobotics2218-65812020-11-01949810.3390/robotics9040098A New Soft RCC Device with Pneumatic RegulationStefano Bottero0Giovanni Gerardo Muscolo1Carlo Ferraresi2DIMEAS-Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyDIMEAS-Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyDIMEAS-Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyThe work described in this paper aims at exploiting the characteristic of a special deformable actuator with rolling membranes to realize a device with defined Remote Center of Compliance (RCC). Starting from theoretical approaches to the definition of the RCC, the authors propose a novel and simple formulation that can be applied to the soft actuator to determine its RCC. The position of the device’s RCC was determined by creating an asymmetry on the geometry of the device along its axis, i.e., by imposing a longitudinal displacement to the piston with respect to the membranes’ rest condition. FEM simulations of the device behavior were carried out and a first formulation describing the placement of the RCC by varying the operating pressure was found. Finally, a comparison of the theoretical model and FEM results is presented, validating the proposed formulation.https://www.mdpi.com/2218-6581/9/4/98remote center of complianceRCCvariable stiffness actuatorhyperplastic membraneair pressure chambersoft actuator
spellingShingle Stefano Bottero
Giovanni Gerardo Muscolo
Carlo Ferraresi
A New Soft RCC Device with Pneumatic Regulation
Robotics
remote center of compliance
RCC
variable stiffness actuator
hyperplastic membrane
air pressure chamber
soft actuator
title A New Soft RCC Device with Pneumatic Regulation
title_full A New Soft RCC Device with Pneumatic Regulation
title_fullStr A New Soft RCC Device with Pneumatic Regulation
title_full_unstemmed A New Soft RCC Device with Pneumatic Regulation
title_short A New Soft RCC Device with Pneumatic Regulation
title_sort new soft rcc device with pneumatic regulation
topic remote center of compliance
RCC
variable stiffness actuator
hyperplastic membrane
air pressure chamber
soft actuator
url https://www.mdpi.com/2218-6581/9/4/98
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