Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin
ObjectivesThis paper investigates the influence of the span-wise stiffness of a flapping pectoral fin on its generated thrust. MethodsA scheme to fabricate a flexible pectoral fin with uniform span-wise stiffness is introduced. A series of experiments is then conducted to investigate the generated t...
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| Format: | Article |
| Language: | English |
| Published: |
Editorial Office of Chinese Journal of Ship Research
2024-02-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03209 |
| _version_ | 1797201208133287936 |
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| author | Songzi GUO Zhiyin LI |
| author_facet | Songzi GUO Zhiyin LI |
| author_sort | Songzi GUO |
| collection | DOAJ |
| description | ObjectivesThis paper investigates the influence of the span-wise stiffness of a flapping pectoral fin on its generated thrust. MethodsA scheme to fabricate a flexible pectoral fin with uniform span-wise stiffness is introduced. A series of experiments is then conducted to investigate the generated thrust and lateral force of the fabricated pectoral fin with different degrees of span-wise stiffness in the frequency range of 0.3−1.0 Hz. Combined with collected shots by a high speed camera, the impact of span-wise stiffness on generated force is analyzed. Results The experimental results show that the average propulsion force and the average lateral force generated by the flexible bionic pectoral fins are related to the size and distribution of the radial stiffness of the fin in the range of the tested flap frequency. By optimizing the spreadal stiffness of the flexible bionic pectoral fin of the robotic fish prototype (XJmanta), the maximum swimming speed can be increased by about 45%.ConclusionsThe results of this study can be used to guide the design of flapping flexible bionic pectoral fins and optimize the hydrodynamic performance of ray-like underwater robots. |
| first_indexed | 2024-04-24T07:43:53Z |
| format | Article |
| id | doaj.art-bbcb598335874b81a513ad90276f81bf |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-04-24T07:43:53Z |
| publishDate | 2024-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-bbcb598335874b81a513ad90276f81bf2024-04-19T05:29:51ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852024-02-01192313610.19693/j.issn.1673-3185.03209ZG3209Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral finSongzi GUO0Zhiyin LI1China Ship Development and Design Center, Wuhan 430064, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaObjectivesThis paper investigates the influence of the span-wise stiffness of a flapping pectoral fin on its generated thrust. MethodsA scheme to fabricate a flexible pectoral fin with uniform span-wise stiffness is introduced. A series of experiments is then conducted to investigate the generated thrust and lateral force of the fabricated pectoral fin with different degrees of span-wise stiffness in the frequency range of 0.3−1.0 Hz. Combined with collected shots by a high speed camera, the impact of span-wise stiffness on generated force is analyzed. Results The experimental results show that the average propulsion force and the average lateral force generated by the flexible bionic pectoral fins are related to the size and distribution of the radial stiffness of the fin in the range of the tested flap frequency. By optimizing the spreadal stiffness of the flexible bionic pectoral fin of the robotic fish prototype (XJmanta), the maximum swimming speed can be increased by about 45%.ConclusionsThe results of this study can be used to guide the design of flapping flexible bionic pectoral fins and optimize the hydrodynamic performance of ray-like underwater robots.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03209bionic actuatorspan-wise stiffnesshydrodynamic experimentflexible bionic pectoral fin |
| spellingShingle | Songzi GUO Zhiyin LI Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin Zhongguo Jianchuan Yanjiu bionic actuator span-wise stiffness hydrodynamic experiment flexible bionic pectoral fin |
| title | Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin |
| title_full | Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin |
| title_fullStr | Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin |
| title_full_unstemmed | Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin |
| title_short | Hydrodynamic experiment on influence of span-wise stiffness of flexible pectoral fin |
| title_sort | hydrodynamic experiment on influence of span wise stiffness of flexible pectoral fin |
| topic | bionic actuator span-wise stiffness hydrodynamic experiment flexible bionic pectoral fin |
| url | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03209 |
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