The effect of localised stiffening on the stability of a flexible panel in uniform flow
The three-dimensional stability of a fluid-loaded flexible panel is studied to determine the effectiveness of adding localised stiffening to control or postpone instability. A hybrid of computational and theoretical modelling is used to cast an eigenvalue problem for the fluid-structure system. It i...
| Main Authors: | , , |
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| Format: | Book Chapter |
| Published: |
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/30231 |
| _version_ | 1848753029114757120 |
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| author | Tan, B. Lucey, A. Howell, Richard |
| author_facet | Tan, B. Lucey, A. Howell, Richard |
| author_sort | Tan, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The three-dimensional stability of a fluid-loaded flexible panel is studied to determine the effectiveness of adding localised stiffening to control or postpone instability. A hybrid of computational and theoretical modelling is used to cast an eigenvalue problem for the fluid-structure system. It is shown that the addition of each of transverse and streamwise stiffening strips postpones divergence onset but for the former there is a threshold strip stiffness above which no further postponement is possible. Streamwise stiffening is additionally shown to be effective for increasing post-divergence flutter-onset flow speeds while in aero-elastic applications a transverse stiffening strip can be used to replace flutter instability with divergence. The present results suggest a relatively economical and practicable way to ameliorate panel instability in both hydro- and aero-elastic applications. |
| first_indexed | 2025-11-14T08:18:01Z |
| format | Book Chapter |
| id | curtin-20.500.11937-30231 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:18:01Z |
| publishDate | 2014 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-302312017-09-13T15:31:39Z The effect of localised stiffening on the stability of a flexible panel in uniform flow Tan, B. Lucey, A. Howell, Richard The three-dimensional stability of a fluid-loaded flexible panel is studied to determine the effectiveness of adding localised stiffening to control or postpone instability. A hybrid of computational and theoretical modelling is used to cast an eigenvalue problem for the fluid-structure system. It is shown that the addition of each of transverse and streamwise stiffening strips postpones divergence onset but for the former there is a threshold strip stiffness above which no further postponement is possible. Streamwise stiffening is additionally shown to be effective for increasing post-divergence flutter-onset flow speeds while in aero-elastic applications a transverse stiffening strip can be used to replace flutter instability with divergence. The present results suggest a relatively economical and practicable way to ameliorate panel instability in both hydro- and aero-elastic applications. 2014 Book Chapter http://hdl.handle.net/20.500.11937/30231 10.1007/978-3-642-40371-2_46 restricted |
| spellingShingle | Tan, B. Lucey, A. Howell, Richard The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title | The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title_full | The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title_fullStr | The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title_full_unstemmed | The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title_short | The effect of localised stiffening on the stability of a flexible panel in uniform flow |
| title_sort | effect of localised stiffening on the stability of a flexible panel in uniform flow |
| url | http://hdl.handle.net/20.500.11937/30231 |