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Article: Simulation analysis for optimal design of pneumatic bellow actuators for soft-robotic glove

TitleSimulation analysis for optimal design of pneumatic bellow actuators for soft-robotic glove
Authors
KeywordsSoft robot
Soft pneumatic actuator
Bellows joint
Finite element modeling
Issue Date2020
PublisherElsevier BV. The Journal's web site is located at https://www.journals.elsevier.com/biocybernetics-and-biomedical-engineering
Citation
Biocybernetics and Biomedical Engineering, 2020, v. 40 n. 4, p. 1359-1368 How to Cite?
AbstractSoft actuators that have a bellows structure are favorable candidates for robots designed to interact with humans. However, a weak point in the actuator can occur as a result of deformation from the driving pressure. In this study, a simulation analysis of a soft bellows actuator composed of ethylene-vinyl acetate copolymer molding was conducted. The mechanical characteristics along different latitudes of the bellows in the soft actuator were evaluated using finite element modeling and analysis. Functional performance was studied during both compression and inflation using two driving methods (constant pumping rate-driven and constant displacement-driven). To validate the simulation, experimental tests were performed on a version of the soft bellows actuator that was constructed according to the same specifications as the model version; simulation and experimental displacements in relation to air pressure were compared. The results showed points near the trough were more likely to experience the largest stress during inflation and may suffer critical structural damage. During compression, points near the crest were more easily damaged. Stress variation showed good symmetry at points of interest on either side of the trough, during both inflation and compression. These findings provide a basis for precise control of and design improvements to soft bellows actuators for human-friendly usage.
Persistent Identifierhttp://hdl.handle.net/10722/305412
ISSN
2023 Impact Factor: 5.3
2023 SCImago Journal Rankings: 1.397
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, N-
dc.contributor.authorSun, Z-
dc.contributor.authorWang, X-
dc.contributor.authorYeung, EHK-
dc.contributor.authorTo, MKT-
dc.contributor.authorLi, X-
dc.contributor.authorHu, Y-
dc.date.accessioned2021-10-20T10:09:02Z-
dc.date.available2021-10-20T10:09:02Z-
dc.date.issued2020-
dc.identifier.citationBiocybernetics and Biomedical Engineering, 2020, v. 40 n. 4, p. 1359-1368-
dc.identifier.issn0208-5216-
dc.identifier.urihttp://hdl.handle.net/10722/305412-
dc.description.abstractSoft actuators that have a bellows structure are favorable candidates for robots designed to interact with humans. However, a weak point in the actuator can occur as a result of deformation from the driving pressure. In this study, a simulation analysis of a soft bellows actuator composed of ethylene-vinyl acetate copolymer molding was conducted. The mechanical characteristics along different latitudes of the bellows in the soft actuator were evaluated using finite element modeling and analysis. Functional performance was studied during both compression and inflation using two driving methods (constant pumping rate-driven and constant displacement-driven). To validate the simulation, experimental tests were performed on a version of the soft bellows actuator that was constructed according to the same specifications as the model version; simulation and experimental displacements in relation to air pressure were compared. The results showed points near the trough were more likely to experience the largest stress during inflation and may suffer critical structural damage. During compression, points near the crest were more easily damaged. Stress variation showed good symmetry at points of interest on either side of the trough, during both inflation and compression. These findings provide a basis for precise control of and design improvements to soft bellows actuators for human-friendly usage.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at https://www.journals.elsevier.com/biocybernetics-and-biomedical-engineering-
dc.relation.ispartofBiocybernetics and Biomedical Engineering-
dc.subjectSoft robot-
dc.subjectSoft pneumatic actuator-
dc.subjectBellows joint-
dc.subjectFinite element modeling-
dc.titleSimulation analysis for optimal design of pneumatic bellow actuators for soft-robotic glove-
dc.typeArticle-
dc.identifier.emailTo, MKT: mikektto@hku.hk-
dc.identifier.emailLi, X: cnlixd2@hku.hk-
dc.identifier.emailHu, Y: yhud@hku.hk-
dc.identifier.authorityTo, MKT=rp00302-
dc.identifier.authorityHu, Y=rp00432-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.bbe.2020.08.002-
dc.identifier.scopuseid_2-s2.0-85090834063-
dc.identifier.hkuros328184-
dc.identifier.volume40-
dc.identifier.issue4-
dc.identifier.spage1359-
dc.identifier.epage1368-
dc.identifier.isiWOS:000605454500003-
dc.publisher.placeNetherlands-

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