Underwater dynamic modeling and experiments of flexible structure with harmonic actuation of macro fiber composites.
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| Title: | Underwater dynamic modeling and experiments of flexible structure with harmonic actuation of macro fiber composites. |
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| Authors: | Jin, Aiguo1,2 (AUTHOR), Lou, Junqiang1 (AUTHOR) loujunqiang@nbu.edu.cn, Chen, Tehuan1 (AUTHOR), Wei, Yanding3 (AUTHOR), Xu, Chao4 (AUTHOR), Liu, Li1 (AUTHOR) liuli@nbu.edu.cn |
| Source: | Mechanics of Advanced Materials & Structures. 2025, Vol. 32 Issue 2, p203-216. 14p. |
| Subjects: | Hamilton's principle function, Submerged structures, Fluid-structure interaction, Mode shapes, Fibrous composites |
| Abstract: | Flexible structures driven by smart actuators are promising alternatives for aquatic bionic propulsion vehicles. However, the hydrodynamic effects induced by viscous fluids on the dynamic response of flexible structures remain an ongoing challenge. Thus, this article presents a fluid-structure interaction dynamic model of a flexible underwater structure actuated by macro fiber composite actuators, and the underwater multimodal vibration characteristics are studied. The model is based on the extended Hamilton's principle, which considers the effects of hydrodynamic forces. The segmented mode shape functions of the flexible structure are derived using the assumed mode method. The study shows that the first two mode shapes of the beam predicted by the model agrees with the experimental results. The underwater dynamic responses of the flexible structure in a board band covering the first two resonance frequencies are also investigated at different actuation levels. The underwater results indicate that the first two resonance frequencies are 1.05 and 6.1 Hz respectively, basically consistent with the simulation ones (1.07 and 6.61 Hz). Correspondingly, the maximum transverse deflections at the end of the beam are 4.81 and 1.31 mm respectively, which are slightly lower than the predicted values of 5.75 and 1.62 mm. Therefore, the validity of the proposed coupled dynamic model is verified, which can be utilized to predict the multimodal dynamic responses of underwater flexible structures actuated by MFC or other smart actuators. [ABSTRACT FROM AUTHOR] |
| Copyright of Mechanics of Advanced Materials & Structures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 182296671 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Underwater dynamic modeling and experiments of flexible structure with harmonic actuation of macro fiber composites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jin%2C+Aiguo%22">Jin, Aiguo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lou%2C+Junqiang%22">Lou, Junqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> loujunqiang@nbu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Tehuan%22">Chen, Tehuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Yanding%22">Wei, Yanding</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Chao%22">Xu, Chao</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Li%22">Liu, Li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuli@nbu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Mechanics+of+Advanced+Materials+%26+Structures%22">Mechanics of Advanced Materials & Structures</searchLink>. 2025, Vol. 32 Issue 2, p203-216. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hamilton's+principle+function%22">Hamilton's principle function</searchLink><br /><searchLink fieldCode="DE" term="%22Submerged+structures%22">Submerged structures</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid-structure+interaction%22">Fluid-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Mode+shapes%22">Mode shapes</searchLink><br /><searchLink fieldCode="DE" term="%22Fibrous+composites%22">Fibrous composites</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Flexible structures driven by smart actuators are promising alternatives for aquatic bionic propulsion vehicles. However, the hydrodynamic effects induced by viscous fluids on the dynamic response of flexible structures remain an ongoing challenge. Thus, this article presents a fluid-structure interaction dynamic model of a flexible underwater structure actuated by macro fiber composite actuators, and the underwater multimodal vibration characteristics are studied. The model is based on the extended Hamilton's principle, which considers the effects of hydrodynamic forces. The segmented mode shape functions of the flexible structure are derived using the assumed mode method. The study shows that the first two mode shapes of the beam predicted by the model agrees with the experimental results. The underwater dynamic responses of the flexible structure in a board band covering the first two resonance frequencies are also investigated at different actuation levels. The underwater results indicate that the first two resonance frequencies are 1.05 and 6.1 Hz respectively, basically consistent with the simulation ones (1.07 and 6.61 Hz). Correspondingly, the maximum transverse deflections at the end of the beam are 4.81 and 1.31 mm respectively, which are slightly lower than the predicted values of 5.75 and 1.62 mm. Therefore, the validity of the proposed coupled dynamic model is verified, which can be utilized to predict the multimodal dynamic responses of underwater flexible structures actuated by MFC or other smart actuators. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Mechanics of Advanced Materials & Structures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/15376494.2024.2341432 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 203 Subjects: – SubjectFull: Hamilton's principle function Type: general – SubjectFull: Submerged structures Type: general – SubjectFull: Fluid-structure interaction Type: general – SubjectFull: Mode shapes Type: general – SubjectFull: Fibrous composites Type: general Titles: – TitleFull: Underwater dynamic modeling and experiments of flexible structure with harmonic actuation of macro fiber composites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jin, Aiguo – PersonEntity: Name: NameFull: Lou, Junqiang – PersonEntity: Name: NameFull: Chen, Tehuan – PersonEntity: Name: NameFull: Wei, Yanding – PersonEntity: Name: NameFull: Xu, Chao – PersonEntity: Name: NameFull: Liu, Li IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 01 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 15376494 Numbering: – Type: volume Value: 32 – Type: issue Value: 2 Titles: – TitleFull: Mechanics of Advanced Materials & Structures Type: main |
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