Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators

This paper discusses how to optimally design polygonal profiles of Electromagnetic Soft Actuators (ESAs) to be used in a network to achieve maximum output force with minimum energy consumption. The soft actuators work based on operating principle of solenoids but are made of intrinsically soft mater...

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Main Authors: Nafiseh Ebrahimi, Amir Jafari
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/14/3572
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author Nafiseh Ebrahimi
Amir Jafari
author_facet Nafiseh Ebrahimi
Amir Jafari
author_sort Nafiseh Ebrahimi
collection DOAJ
description This paper discusses how to optimally design polygonal profiles of Electromagnetic Soft Actuators (ESAs) to be used in a network to achieve maximum output force with minimum energy consumption. The soft actuators work based on operating principle of solenoids but are made of intrinsically soft materials. It was, previously, confirmed that by miniaturizing the size, the amount of output force decreases for a single ESA however, by the ratio of force to volume increases. Therefore, networking small sized ESAs, would increase the output force. Initially, ESAs were made with circular cross-section profiles. However, we prove here that the shape of the cross-section profile can affect the output force. A polygonal shape with fewer sides would result in higher output force for a single ESA. However, with a network of ESAs, another parameter, packing density, plays an important role in the output force. Our optimization results suggest that even though triangular cross-section profiles lead to the highest amount of force for a single ESA, the best choice would be hexagonal shapes when they are networked.
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spelling doaj.art-f28bb679ac0b44079d5ea425196934782023-11-20T06:27:01ZengMDPI AGEnergies1996-10732020-07-011314357210.3390/en13143572Energy and Force Optimization of a Network of Novel Electromagnetic Soft ActuatorsNafiseh Ebrahimi0Amir Jafari1Advanced Robotic Manipulators (ARM) Lab, Department of Mechanical Engineering, University of Texas at San Antonio (UTSA), One Circle, San Antonio, TX 78249, USAAdvanced Robotic Manipulators (ARM) Lab, Department of Mechanical Engineering, University of Texas at San Antonio (UTSA), One Circle, San Antonio, TX 78249, USAThis paper discusses how to optimally design polygonal profiles of Electromagnetic Soft Actuators (ESAs) to be used in a network to achieve maximum output force with minimum energy consumption. The soft actuators work based on operating principle of solenoids but are made of intrinsically soft materials. It was, previously, confirmed that by miniaturizing the size, the amount of output force decreases for a single ESA however, by the ratio of force to volume increases. Therefore, networking small sized ESAs, would increase the output force. Initially, ESAs were made with circular cross-section profiles. However, we prove here that the shape of the cross-section profile can affect the output force. A polygonal shape with fewer sides would result in higher output force for a single ESA. However, with a network of ESAs, another parameter, packing density, plays an important role in the output force. Our optimization results suggest that even though triangular cross-section profiles lead to the highest amount of force for a single ESA, the best choice would be hexagonal shapes when they are networked.https://www.mdpi.com/1996-1073/13/14/3572design optimizationsoft magnetelectromagnetic actuator
spellingShingle Nafiseh Ebrahimi
Amir Jafari
Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
Energies
design optimization
soft magnet
electromagnetic actuator
title Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
title_full Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
title_fullStr Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
title_full_unstemmed Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
title_short Energy and Force Optimization of a Network of Novel Electromagnetic Soft Actuators
title_sort energy and force optimization of a network of novel electromagnetic soft actuators
topic design optimization
soft magnet
electromagnetic actuator
url https://www.mdpi.com/1996-1073/13/14/3572
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