Side view of a single air pouch.

<div><p>Inspired by the flexible structures found in soft organisms in nature, researchers have developed a variety of novel soft robots using flexible materials. Compared to traditional rigid robots, soft robots offer advantages such as lighter weight, greater flexibility, higher degree...

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Main Author: Hongjun Meng (5031806) (author)
Other Authors: Changbao Zhou (22311654) (author), Xingbo Yang (22311657) (author), Peiqi Zhao (1835164) (author), Wei Zhang (405) (author)
Published: 2025
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_version_ 1852016258552168448
author Hongjun Meng (5031806)
author2 Changbao Zhou (22311654)
Xingbo Yang (22311657)
Peiqi Zhao (1835164)
Wei Zhang (405)
author2_role author
author
author
author
author_facet Hongjun Meng (5031806)
Changbao Zhou (22311654)
Xingbo Yang (22311657)
Peiqi Zhao (1835164)
Wei Zhang (405)
author_role author
dc.creator.none.fl_str_mv Hongjun Meng (5031806)
Changbao Zhou (22311654)
Xingbo Yang (22311657)
Peiqi Zhao (1835164)
Wei Zhang (405)
dc.date.none.fl_str_mv 2025-09-25T17:43:42Z
dc.identifier.none.fl_str_mv 10.1371/journal.pone.0333187.g004
dc.relation.none.fl_str_mv https://figshare.com/articles/figure/Side_view_of_a_single_air_pouch_/30212283
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Cell Biology
Physiology
Biotechnology
Ecology
Cancer
Science Policy
Plasma Physics
Infectious Diseases
Space Science
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Information Systems not elsewhere classified
xlink "> inspired
traditional rigid robots
flexible structures found
experimental results demonstrated
driven modeling method
50 %, resulting
pneumatic actuator suitable
hexagonal mesh structure
robot &# 8217
proposed optimized algorithm
novel design approach
also systematically designed
improved control accuracy
soft control model
quadruped soft robot
soft actuator
soft structure
improved safety
soft organisms
overall structure
robot interaction
control system
significant challenge
paper proposed
lighter weight
leg movements
higher degrees
greater flexibility
dc.title.none.fl_str_mv Side view of a single air pouch.
dc.type.none.fl_str_mv Image
Figure
info:eu-repo/semantics/publishedVersion
image
description <div><p>Inspired by the flexible structures found in soft organisms in nature, researchers have developed a variety of novel soft robots using flexible materials. Compared to traditional rigid robots, soft robots offer advantages such as lighter weight, greater flexibility, higher degrees of freedom, and improved safety in human-robot interaction. However, designing and controlling soft robots remains a significant challenge. This paper proposed a novel design approach for a bio-inspired quadruped soft robot. Firstly, a hexagonal mesh structure for a quadruped soft robot was proposed, and the pneumatic actuator suitable for the soft structure was designed to enable the robot’s leg movements, such as extension and bending. The body and overall structure of the robot were also systematically designed. Furthermore, a data-driven modeling method for the soft actuator was introduced, alongside an Improved Particle Swarm Optimization algorithm for fine-tuning PID control parameters. Finally, the prototype of the quadruped soft robot was constructed, and the control system was implemented. The proposed soft actuator model was validated, and the effectiveness of the proposed optimized algorithm was evaluated. Experimental results demonstrated that the application of the soft control model and the control parameter optimization algorithm reduced tracking angle errors by more than 50%, resulting in improved control accuracy and greater stability.</p></div>
eu_rights_str_mv openAccess
id Manara_6f528136f889d5d7514761dba35e4792
identifier_str_mv 10.1371/journal.pone.0333187.g004
network_acronym_str Manara
network_name_str ManaraRepo
oai_identifier_str oai:figshare.com:article/30212283
publishDate 2025
repository.mail.fl_str_mv
repository.name.fl_str_mv
repository_id_str
rights_invalid_str_mv CC BY 4.0
spelling Side view of a single air pouch.Hongjun Meng (5031806)Changbao Zhou (22311654)Xingbo Yang (22311657)Peiqi Zhao (1835164)Wei Zhang (405)Cell BiologyPhysiologyBiotechnologyEcologyCancerScience PolicyPlasma PhysicsInfectious DiseasesSpace ScienceBiological Sciences not elsewhere classifiedMathematical Sciences not elsewhere classifiedChemical Sciences not elsewhere classifiedInformation Systems not elsewhere classifiedxlink "> inspiredtraditional rigid robotsflexible structures foundexperimental results demonstrateddriven modeling method50 %, resultingpneumatic actuator suitablehexagonal mesh structurerobot &# 8217proposed optimized algorithmnovel design approachalso systematically designedimproved control accuracysoft control modelquadruped soft robotsoft actuatorsoft structureimproved safetysoft organismsoverall structurerobot interactioncontrol systemsignificant challengepaper proposedlighter weightleg movementshigher degreesgreater flexibility<div><p>Inspired by the flexible structures found in soft organisms in nature, researchers have developed a variety of novel soft robots using flexible materials. Compared to traditional rigid robots, soft robots offer advantages such as lighter weight, greater flexibility, higher degrees of freedom, and improved safety in human-robot interaction. However, designing and controlling soft robots remains a significant challenge. This paper proposed a novel design approach for a bio-inspired quadruped soft robot. Firstly, a hexagonal mesh structure for a quadruped soft robot was proposed, and the pneumatic actuator suitable for the soft structure was designed to enable the robot’s leg movements, such as extension and bending. The body and overall structure of the robot were also systematically designed. Furthermore, a data-driven modeling method for the soft actuator was introduced, alongside an Improved Particle Swarm Optimization algorithm for fine-tuning PID control parameters. Finally, the prototype of the quadruped soft robot was constructed, and the control system was implemented. The proposed soft actuator model was validated, and the effectiveness of the proposed optimized algorithm was evaluated. Experimental results demonstrated that the application of the soft control model and the control parameter optimization algorithm reduced tracking angle errors by more than 50%, resulting in improved control accuracy and greater stability.</p></div>2025-09-25T17:43:42ZImageFigureinfo:eu-repo/semantics/publishedVersionimage10.1371/journal.pone.0333187.g004https://figshare.com/articles/figure/Side_view_of_a_single_air_pouch_/30212283CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/302122832025-09-25T17:43:42Z
spellingShingle Side view of a single air pouch.
Hongjun Meng (5031806)
Cell Biology
Physiology
Biotechnology
Ecology
Cancer
Science Policy
Plasma Physics
Infectious Diseases
Space Science
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Information Systems not elsewhere classified
xlink "> inspired
traditional rigid robots
flexible structures found
experimental results demonstrated
driven modeling method
50 %, resulting
pneumatic actuator suitable
hexagonal mesh structure
robot &# 8217
proposed optimized algorithm
novel design approach
also systematically designed
improved control accuracy
soft control model
quadruped soft robot
soft actuator
soft structure
improved safety
soft organisms
overall structure
robot interaction
control system
significant challenge
paper proposed
lighter weight
leg movements
higher degrees
greater flexibility
status_str publishedVersion
title Side view of a single air pouch.
title_full Side view of a single air pouch.
title_fullStr Side view of a single air pouch.
title_full_unstemmed Side view of a single air pouch.
title_short Side view of a single air pouch.
title_sort Side view of a single air pouch.
topic Cell Biology
Physiology
Biotechnology
Ecology
Cancer
Science Policy
Plasma Physics
Infectious Diseases
Space Science
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Information Systems not elsewhere classified
xlink "> inspired
traditional rigid robots
flexible structures found
experimental results demonstrated
driven modeling method
50 %, resulting
pneumatic actuator suitable
hexagonal mesh structure
robot &# 8217
proposed optimized algorithm
novel design approach
also systematically designed
improved control accuracy
soft control model
quadruped soft robot
soft actuator
soft structure
improved safety
soft organisms
overall structure
robot interaction
control system
significant challenge
paper proposed
lighter weight
leg movements
higher degrees
greater flexibility