19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting
In this paper, two mounting systems are studied and compared. The first is a new system in fluid-structure interaction (FSI) wherein a cantilevered thin flexible plate is aligned with a uniform flow with the upstream end of the plate attached to a spring-mass system: this allows the entire system to...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/33609 |
| _version_ | 1848753994477862912 |
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| author | Howell, R. Lucey, Anthony |
| author_facet | Howell, R. Lucey, Anthony |
| author_sort | Howell, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, two mounting systems are studied and compared. The first is a new system in fluid-structure interaction (FSI) wherein a cantilevered thin flexible plate is aligned with a uniform flow with the upstream end of the plate attached to a spring-mass system: this allows the entire system to oscillate in a direction perpendicular to that of the flow as a result of the mounting's dynamic interaction with the flow-induced oscillations, or flutter, of the flexible plate; we compare this system to one where the upstream end is hinged with a rotational spring at the mount. While the first system is a fundamental problem in FSI, the study of this variation on classical plate flutter is also motivated by its potential as an energy-harvesting system in which the reciprocating motion of the support system would be tapped for energy production. In this paper we formulate and deploy a hybrid of theoretical and computational models for the fluid-structure systems and map out their linear stability characteristics. The computational model detailed is a fully-implicit solution that is very robust to spatial and temporal discretisation. Compared to a fixed cantilever, the introduction of the dynamic support in both systems is shown to yield lower flutter-onset flow speeds and for the spring-mounted cantilever a reduction of the order of the mode that yields the critical flow speed; these effects would be desirable for energy harvesting applications. |
| first_indexed | 2025-11-14T08:33:21Z |
| format | Conference Paper |
| id | curtin-20.500.11937-33609 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:33:21Z |
| publishDate | 2014 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-336092017-01-30T13:38:08Z 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting Howell, R. Lucey, Anthony In this paper, two mounting systems are studied and compared. The first is a new system in fluid-structure interaction (FSI) wherein a cantilevered thin flexible plate is aligned with a uniform flow with the upstream end of the plate attached to a spring-mass system: this allows the entire system to oscillate in a direction perpendicular to that of the flow as a result of the mounting's dynamic interaction with the flow-induced oscillations, or flutter, of the flexible plate; we compare this system to one where the upstream end is hinged with a rotational spring at the mount. While the first system is a fundamental problem in FSI, the study of this variation on classical plate flutter is also motivated by its potential as an energy-harvesting system in which the reciprocating motion of the support system would be tapped for energy production. In this paper we formulate and deploy a hybrid of theoretical and computational models for the fluid-structure systems and map out their linear stability characteristics. The computational model detailed is a fully-implicit solution that is very robust to spatial and temporal discretisation. Compared to a fixed cantilever, the introduction of the dynamic support in both systems is shown to yield lower flutter-onset flow speeds and for the spring-mounted cantilever a reduction of the order of the mode that yields the critical flow speed; these effects would be desirable for energy harvesting applications. 2014 Conference Paper http://hdl.handle.net/20.500.11937/33609 restricted |
| spellingShingle | Howell, R. Lucey, Anthony 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title | 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title_full | 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title_fullStr | 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title_full_unstemmed | 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title_short | 19th Australasian fluid mechanics conference: Flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| title_sort | 19th australasian fluid mechanics conference: flow-induced structural instabilities via spring-mounted lifting flexible plates in a uniform flow for energy harvesting |
| url | http://hdl.handle.net/20.500.11937/33609 |