Propulsion-Based Soft Robotic Actuation

The use of air propulsion to drive limb motion in soft robotics has been a largely untapped field even though the technology has been around since the 1700s. Air propulsion can generate greater degrees of motion in limb actuators compared to widely-experimented pneumatic actuators operating on expan...

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Main Authors: Matthew Chin Heng Chua, Raye Chen Hua Yeow
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Robotics
Subjects:
Online Access:https://www.mdpi.com/2218-6581/6/4/34
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author Matthew Chin Heng Chua
Raye Chen Hua Yeow
author_facet Matthew Chin Heng Chua
Raye Chen Hua Yeow
author_sort Matthew Chin Heng Chua
collection DOAJ
description The use of air propulsion to drive limb motion in soft robotics has been a largely untapped field even though the technology has been around since the 1700s. Air propulsion can generate greater degrees of motion in limb actuators compared to widely-experimented pneumatic actuators operating on expandable air channels, which are limited by air pressure input, minimum size and cyclic fatigue. To demonstrate the application of air propulsion in soft robotics motion, we developed a 3D-printed, tri-pedal, soft, air-driven robot that can perform biomimetic motions such as flexion and extension of limbs, crawling, rotation, grasping, kicking and picking of objects. To accomplish air-propelled actuation, milli-scale channels are incorporated throughout each limb that guides the pressurized air inflow to outlets of different directions. A Finite Element Model (FEM) approach to simulate the bending response of the limb due to varying pressure is proposed and evaluated. This study introduces the potential of using air propulsion as an alternate form of soft body actuation for longer cyclic lifespan and increased maximum air pressure input.
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spelling doaj.art-9e4afff869ac4adf8cea89a81894ec392022-12-22T02:58:42ZengMDPI AGRobotics2218-65812017-11-01643410.3390/robotics6040034robotics6040034Propulsion-Based Soft Robotic ActuationMatthew Chin Heng Chua0Raye Chen Hua Yeow1Institute of Systems Science, National University of Singapore, Singapore 119615, SingaporeDepartment of Biomedical Engineering, National University of Singapore, Singapore 117575, SingaporeThe use of air propulsion to drive limb motion in soft robotics has been a largely untapped field even though the technology has been around since the 1700s. Air propulsion can generate greater degrees of motion in limb actuators compared to widely-experimented pneumatic actuators operating on expandable air channels, which are limited by air pressure input, minimum size and cyclic fatigue. To demonstrate the application of air propulsion in soft robotics motion, we developed a 3D-printed, tri-pedal, soft, air-driven robot that can perform biomimetic motions such as flexion and extension of limbs, crawling, rotation, grasping, kicking and picking of objects. To accomplish air-propelled actuation, milli-scale channels are incorporated throughout each limb that guides the pressurized air inflow to outlets of different directions. A Finite Element Model (FEM) approach to simulate the bending response of the limb due to varying pressure is proposed and evaluated. This study introduces the potential of using air propulsion as an alternate form of soft body actuation for longer cyclic lifespan and increased maximum air pressure input.https://www.mdpi.com/2218-6581/6/4/34soft roboticspneumatic-driven3D-printedbiomimeticdesign and modelling
spellingShingle Matthew Chin Heng Chua
Raye Chen Hua Yeow
Propulsion-Based Soft Robotic Actuation
Robotics
soft robotics
pneumatic-driven
3D-printed
biomimetic
design and modelling
title Propulsion-Based Soft Robotic Actuation
title_full Propulsion-Based Soft Robotic Actuation
title_fullStr Propulsion-Based Soft Robotic Actuation
title_full_unstemmed Propulsion-Based Soft Robotic Actuation
title_short Propulsion-Based Soft Robotic Actuation
title_sort propulsion based soft robotic actuation
topic soft robotics
pneumatic-driven
3D-printed
biomimetic
design and modelling
url https://www.mdpi.com/2218-6581/6/4/34
work_keys_str_mv AT matthewchinhengchua propulsionbasedsoftroboticactuation
AT rayechenhuayeow propulsionbasedsoftroboticactuation