Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose
Most of pneumatic soft robots rely on external rigid controllers and valves to achieve rhythmic movements. This article introduces a soft pneumatic pressure regulation system with self‐rhythmic characteristics and simple structure. In this system, the hose generates self‐excited oscillations due to...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-08-01
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| Series: | Advanced Intelligent Systems |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aisy.202401003 |
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| _version_ | 1849230103422173184 |
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| author | Fenglin Han Huang Xiong Qixin Li Jing Yang Chunli He Xueyi Guo Zhi Chen |
| author_facet | Fenglin Han Huang Xiong Qixin Li Jing Yang Chunli He Xueyi Guo Zhi Chen |
| author_sort | Fenglin Han |
| collection | DOAJ |
| description | Most of pneumatic soft robots rely on external rigid controllers and valves to achieve rhythmic movements. This article introduces a soft pneumatic pressure regulation system with self‐rhythmic characteristics and simple structure. In this system, the hose generates self‐excited oscillations due to jet force, which realizes the transformation of constant pressure to periodically varying pressure. This mechanism allows soft robots to perform rhythmic movements. A mathematical model is developed to describe the self‐excited oscillations of the jet hose. Numerical simulations are conducted to analyze the impact of various parameters on system oscillations. The system operates under pressures from 90 to 150 kPa. By adjusting the pressure, hose length, and jet hole diameter, the oscillation frequency of the pressure can be tuned between 5.9 and 11.1 Hz. The comparison between simulation results and experimental data verifies the correctness of the mathematical model. Finally, a soft robot capable of crawling based on anisotropic friction is designed and fabricated. Powered solely by the soft pneumatic pressure regulation system, the robot achieves self‐rhythmic crawling. By adjusting the air source pressure, hose length, and jet hole diameter, the robot's crawling speed can be effectively controlled, ranging from 2.5 to 6.8 mm s−1. |
| format | Article |
| id | doaj-art-a58253939ea7458d8dcd268666a82aa3 |
| institution | Kabale University |
| issn | 2640-4567 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Intelligent Systems |
| spelling | doaj-art-a58253939ea7458d8dcd268666a82aa32025-08-21T11:05:47ZengWileyAdvanced Intelligent Systems2640-45672025-08-0178n/an/a10.1002/aisy.202401003Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet HoseFenglin Han0Huang Xiong1Qixin Li2Jing Yang3Chunli He4Xueyi Guo5Zhi Chen6College of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaCollege of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaCollege of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaCollege of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaCollege of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaSchool of Metallurgy and Environment Central South University Changsha 410083 ChinaCollege of Mechanical and Electrical Engineering Central South University Changsha 410083 ChinaMost of pneumatic soft robots rely on external rigid controllers and valves to achieve rhythmic movements. This article introduces a soft pneumatic pressure regulation system with self‐rhythmic characteristics and simple structure. In this system, the hose generates self‐excited oscillations due to jet force, which realizes the transformation of constant pressure to periodically varying pressure. This mechanism allows soft robots to perform rhythmic movements. A mathematical model is developed to describe the self‐excited oscillations of the jet hose. Numerical simulations are conducted to analyze the impact of various parameters on system oscillations. The system operates under pressures from 90 to 150 kPa. By adjusting the pressure, hose length, and jet hole diameter, the oscillation frequency of the pressure can be tuned between 5.9 and 11.1 Hz. The comparison between simulation results and experimental data verifies the correctness of the mathematical model. Finally, a soft robot capable of crawling based on anisotropic friction is designed and fabricated. Powered solely by the soft pneumatic pressure regulation system, the robot achieves self‐rhythmic crawling. By adjusting the air source pressure, hose length, and jet hole diameter, the robot's crawling speed can be effectively controlled, ranging from 2.5 to 6.8 mm s−1.https://doi.org/10.1002/aisy.202401003modelingself‐excited oscillationsself‐rhythmicssoft controllerssoft robots |
| spellingShingle | Fenglin Han Huang Xiong Qixin Li Jing Yang Chunli He Xueyi Guo Zhi Chen Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose Advanced Intelligent Systems modeling self‐excited oscillations self‐rhythmics soft controllers soft robots |
| title | Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose |
| title_full | Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose |
| title_fullStr | Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose |
| title_full_unstemmed | Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose |
| title_short | Self‐Rhythmic Soft Pneumatic Pressure Regulation System Based on Self‐Excited Oscillation of Jet Hose |
| title_sort | self rhythmic soft pneumatic pressure regulation system based on self excited oscillation of jet hose |
| topic | modeling self‐excited oscillations self‐rhythmics soft controllers soft robots |
| url | https://doi.org/10.1002/aisy.202401003 |
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