On stability and active control of carbon nanotube reinforced material moving thin cylindrical shell.
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| Title: | On stability and active control of carbon nanotube reinforced material moving thin cylindrical shell. |
|---|---|
| Authors: | Sun, Bingnan1 (AUTHOR) sunbn_heu@163.com, Han, Guangcai1 (AUTHOR) guangcaihan@163.com |
| Source: | Acta Mechanica. May2026, Vol. 237 Issue 5, p2309-2328. 20p. |
| Subjects: | Cylindrical shells, Carbon nanotubes, Humidity, Active noise & vibration control, Feedback control systems, Dynamic stability, Piezoelectric composites |
| Abstract: | Aircraft like missiles and rockets often operate under high-speed motion and hygrothermal conditions, potentially affecting their stability and threatening structural safety and performance. Therefore, this research models missiles and rockets as axially moving cylindrical shells, and investigates the stability and active control of simply supported (S–S) cylindrical shells undergoing axial motion, subject to hygrothermal conditions and reinforced with carbon nanotubes (CNTs). Employing Love's classical shell theory and the principle of Hamilton, the mathematical model for an axially moving piezoelectrically hierarchical shell enhanced with CNTs subject to hygrothermal effects is developed. The Galerkin discretization scheme is further adopted to reduce the dynamic equations to a finite-dimensional system. Macro fiber composites (MFC) were integrated as controller components, bonded to the internal and external surfaces of the shells. Control systems are designed using linear quadratic regulator (LQR) and displacement feedback controller (DFC) strategies to suppress the shell displacement under unstable conditions. We examine how nanotube distribution, volume fraction, power-law index, cylindrical shells thickness, temperature and humidity affect the shell's critical velocity. Simulation results indicate that both control strategies can effectively enhance dynamic stability, with the LQR method demonstrating superior performance in vibration suppression. For the design of mobile shell structures that must perform reliably in complex settings, these findings offer valuable insights. [ABSTRACT FROM AUTHOR] |
| Copyright of Acta Mechanica is the property of Springer Nature 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193713644 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: On stability and active control of carbon nanotube reinforced material moving thin cylindrical shell. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sun%2C+Bingnan%22">Sun, Bingnan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sunbn_heu@163.com</i><br /><searchLink fieldCode="AR" term="%22Han%2C+Guangcai%22">Han, Guangcai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> guangcaihan@163.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Mechanica%22">Acta Mechanica</searchLink>. May2026, Vol. 237 Issue 5, p2309-2328. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cylindrical+shells%22">Cylindrical shells</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Humidity%22">Humidity</searchLink><br /><searchLink fieldCode="DE" term="%22Active+noise+%26+vibration+control%22">Active noise & vibration control</searchLink><br /><searchLink fieldCode="DE" term="%22Feedback+control+systems%22">Feedback control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+stability%22">Dynamic stability</searchLink><br /><searchLink fieldCode="DE" term="%22Piezoelectric+composites%22">Piezoelectric composites</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Aircraft like missiles and rockets often operate under high-speed motion and hygrothermal conditions, potentially affecting their stability and threatening structural safety and performance. Therefore, this research models missiles and rockets as axially moving cylindrical shells, and investigates the stability and active control of simply supported (S–S) cylindrical shells undergoing axial motion, subject to hygrothermal conditions and reinforced with carbon nanotubes (CNTs). Employing Love's classical shell theory and the principle of Hamilton, the mathematical model for an axially moving piezoelectrically hierarchical shell enhanced with CNTs subject to hygrothermal effects is developed. The Galerkin discretization scheme is further adopted to reduce the dynamic equations to a finite-dimensional system. Macro fiber composites (MFC) were integrated as controller components, bonded to the internal and external surfaces of the shells. Control systems are designed using linear quadratic regulator (LQR) and displacement feedback controller (DFC) strategies to suppress the shell displacement under unstable conditions. We examine how nanotube distribution, volume fraction, power-law index, cylindrical shells thickness, temperature and humidity affect the shell's critical velocity. Simulation results indicate that both control strategies can effectively enhance dynamic stability, with the LQR method demonstrating superior performance in vibration suppression. For the design of mobile shell structures that must perform reliably in complex settings, these findings offer valuable insights. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Acta Mechanica is the property of Springer Nature 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: 10.1007/s00707-025-04620-2 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 2309 Subjects: – SubjectFull: Cylindrical shells Type: general – SubjectFull: Carbon nanotubes Type: general – SubjectFull: Humidity Type: general – SubjectFull: Active noise & vibration control Type: general – SubjectFull: Feedback control systems Type: general – SubjectFull: Dynamic stability Type: general – SubjectFull: Piezoelectric composites Type: general Titles: – TitleFull: On stability and active control of carbon nanotube reinforced material moving thin cylindrical shell. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sun, Bingnan – PersonEntity: Name: NameFull: Han, Guangcai IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00015970 Numbering: – Type: volume Value: 237 – Type: issue Value: 5 Titles: – TitleFull: Acta Mechanica Type: main |
| ResultId | 1 |
