Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics)
This paper deals with the flutter analysis of a rectangular sheet flexibly supported by a wire at the leading edge of the sheet subjected to axial fluid flow. The unsteady fluid force acting on the sheet surface is calculated by using Doublet-point method, which is based on unsteady lifting surface...
| Main Authors: | , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2016-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00009/_pdf/-char/en |
| _version_ | 1811317781760573440 |
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| author | Keiichi HIROAKI Masahiro WATANABE |
| author_facet | Keiichi HIROAKI Masahiro WATANABE |
| author_sort | Keiichi HIROAKI |
| collection | DOAJ |
| description | This paper deals with the flutter analysis of a rectangular sheet flexibly supported by a wire at the leading edge of the sheet subjected to axial fluid flow. The unsteady fluid force acting on the sheet surface is calculated by using Doublet-point method, which is based on unsteady lifting surface theory. The equation of motion of the sheet coupled with the wire is derived by employing the finite element method. Flutter velocity, frequency and mode are examined through the root locus of the flutter determinant of the system with changing flow velocity. Moreover we measure the flutter velocity and frequency. Flutter characteristic is clarified by comparing the analytical results with the experimental results. To organize the analytical and experimental results, we develop equivalent bending stiffness and torsional stiffness of the leading edge supported by the wire. Then the parameters of wire (tension, length, diameter and Young's modulus) are reduced in two dimensionless numbers (dimensionless equivalent bending stiffness and torsional stiffness). Moreover we organize the analytical and experimental results using these dimensionless numbers. |
| first_indexed | 2024-04-13T12:14:20Z |
| format | Article |
| id | doaj.art-e4507b5c5e494dcbb7af232b2a7b8894 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-13T12:14:20Z |
| publishDate | 2016-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-e4507b5c5e494dcbb7af232b2a7b88942022-12-22T02:47:25ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612016-11-018284416-0000916-0000910.1299/transjsme.16-00009transjsmeFlutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics)Keiichi HIROAKI0Masahiro WATANABE1Aoyama Gakuin Univ. Dept. of Mechanical EngineeringAoyama Gakuin Univ. Dept. of Mechanical EngineeringThis paper deals with the flutter analysis of a rectangular sheet flexibly supported by a wire at the leading edge of the sheet subjected to axial fluid flow. The unsteady fluid force acting on the sheet surface is calculated by using Doublet-point method, which is based on unsteady lifting surface theory. The equation of motion of the sheet coupled with the wire is derived by employing the finite element method. Flutter velocity, frequency and mode are examined through the root locus of the flutter determinant of the system with changing flow velocity. Moreover we measure the flutter velocity and frequency. Flutter characteristic is clarified by comparing the analytical results with the experimental results. To organize the analytical and experimental results, we develop equivalent bending stiffness and torsional stiffness of the leading edge supported by the wire. Then the parameters of wire (tension, length, diameter and Young's modulus) are reduced in two dimensionless numbers (dimensionless equivalent bending stiffness and torsional stiffness). Moreover we organize the analytical and experimental results using these dimensionless numbers.https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00009/_pdf/-char/enequivalent bending stiffnessequivalent torsional stiffnessflutter analysisunsteady lifting surface theorydoublet-point methodwind-tunnel experiment |
| spellingShingle | Keiichi HIROAKI Masahiro WATANABE Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) Nihon Kikai Gakkai ronbunshu equivalent bending stiffness equivalent torsional stiffness flutter analysis unsteady lifting surface theory doublet-point method wind-tunnel experiment |
| title | Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) |
| title_full | Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) |
| title_fullStr | Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) |
| title_full_unstemmed | Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) |
| title_short | Flutter of a rectangular sheet flexibly supported at the leading edge (Influence of support condition of the sheet on flutter characteristics) |
| title_sort | flutter of a rectangular sheet flexibly supported at the leading edge influence of support condition of the sheet on flutter characteristics |
| topic | equivalent bending stiffness equivalent torsional stiffness flutter analysis unsteady lifting surface theory doublet-point method wind-tunnel experiment |
| url | https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00009/_pdf/-char/en |
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