Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping

Soft pneumatic grippers (SPGs) have garnered significant attention and recognition in various industries owing to their remarkable flexibility, safety, and adaptability. They excel in manipulating delicate, irregularly shaped, and soft objects, surpassing the limitations of conventional grippers. Ho...

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Main Authors: Gridsada Phanomchoeng, Patchara Pitchayawetwongsa, Nattaphat Boonchumanee, Saravut Lin, Ratchatin Chancharoen
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Robotics
Subjects:
Online Access:https://www.mdpi.com/2218-6581/12/4/107
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author Gridsada Phanomchoeng
Patchara Pitchayawetwongsa
Nattaphat Boonchumanee
Saravut Lin
Ratchatin Chancharoen
author_facet Gridsada Phanomchoeng
Patchara Pitchayawetwongsa
Nattaphat Boonchumanee
Saravut Lin
Ratchatin Chancharoen
author_sort Gridsada Phanomchoeng
collection DOAJ
description Soft pneumatic grippers (SPGs) have garnered significant attention and recognition in various industries owing to their remarkable flexibility, safety, and adaptability. They excel in manipulating delicate, irregularly shaped, and soft objects, surpassing the limitations of conventional grippers. However, effective control techniques for managing the grasping profile of SPGs are still under development. Simple on–off pressure control using a regulator valve is inadequate for delicate gripping with pneumatic robot grippers. To address this, a synergy pressure control system was implemented. In addition, a proportional–integral–derivative control technique, complemented by an unknown input observer, was devised to control the volume of the soft pneumatic robotic gripper, ensuring its alignment with the desired volume level. The simulation and experimental results provide substantial evidence of the effectiveness of the developed control technique and the unknown input observer in managing the volume and pressure of the gripper. Consequently, this breakthrough empowers precise and delicate gripping actions, enabling the handling of delicate objects such as tofu.
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spelling doaj.art-1d22162a2ec24b4cb3abbd6f2b2739572023-11-19T02:55:20ZengMDPI AGRobotics2218-65812023-07-0112410710.3390/robotics12040107Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate GrippingGridsada Phanomchoeng0Patchara Pitchayawetwongsa1Nattaphat Boonchumanee2Saravut Lin3Ratchatin Chancharoen4Department of Mechanical Engineering, Chulalongkorn University, Bangkok 10330, ThailandDepartment of Mechanical Engineering, Chulalongkorn University, Bangkok 10330, ThailandDepartment of Mechanical Engineering, Chulalongkorn University, Bangkok 10330, ThailandDepartment of Mechanical Engineering, Chulalongkorn University, Bangkok 10330, ThailandDepartment of Mechanical Engineering, Chulalongkorn University, Bangkok 10330, ThailandSoft pneumatic grippers (SPGs) have garnered significant attention and recognition in various industries owing to their remarkable flexibility, safety, and adaptability. They excel in manipulating delicate, irregularly shaped, and soft objects, surpassing the limitations of conventional grippers. However, effective control techniques for managing the grasping profile of SPGs are still under development. Simple on–off pressure control using a regulator valve is inadequate for delicate gripping with pneumatic robot grippers. To address this, a synergy pressure control system was implemented. In addition, a proportional–integral–derivative control technique, complemented by an unknown input observer, was devised to control the volume of the soft pneumatic robotic gripper, ensuring its alignment with the desired volume level. The simulation and experimental results provide substantial evidence of the effectiveness of the developed control technique and the unknown input observer in managing the volume and pressure of the gripper. Consequently, this breakthrough empowers precise and delicate gripping actions, enabling the handling of delicate objects such as tofu.https://www.mdpi.com/2218-6581/12/4/107soft gripperpneumatic grippersoft materialPID controlnonlinear observerunknown input observer
spellingShingle Gridsada Phanomchoeng
Patchara Pitchayawetwongsa
Nattaphat Boonchumanee
Saravut Lin
Ratchatin Chancharoen
Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
Robotics
soft gripper
pneumatic gripper
soft material
PID control
nonlinear observer
unknown input observer
title Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
title_full Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
title_fullStr Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
title_full_unstemmed Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
title_short Grasping Profile Control of a Soft Pneumatic Robotic Gripper for Delicate Gripping
title_sort grasping profile control of a soft pneumatic robotic gripper for delicate gripping
topic soft gripper
pneumatic gripper
soft material
PID control
nonlinear observer
unknown input observer
url https://www.mdpi.com/2218-6581/12/4/107
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AT patcharapitchayawetwongsa graspingprofilecontrolofasoftpneumaticroboticgripperfordelicategripping
AT nattaphatboonchumanee graspingprofilecontrolofasoftpneumaticroboticgripperfordelicategripping
AT saravutlin graspingprofilecontrolofasoftpneumaticroboticgripperfordelicategripping
AT ratchatinchancharoen graspingprofilecontrolofasoftpneumaticroboticgripperfordelicategripping