Power Output of Spring-Mounted Lifting Plates in Axial Flow

In this paper, two different spring-mounting systems of lifting flexible plates in ideal flow are compared for their suitability in energy harvesting of induced flutter instability via the reciprocating motion of the spring system. In previous work, it was found that compared to a fixed cantilever t...

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Main Authors: Howell, Richard, Lucey, Anthony
Format: Book Chapter
Published: Springer 2016
Online Access:http://hdl.handle.net/20.500.11937/7757
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author Howell, Richard
Lucey, Anthony
author_facet Howell, Richard
Lucey, Anthony
author_sort Howell, Richard
building Curtin Institutional Repository
collection Online Access
description In this paper, two different spring-mounting systems of lifting flexible plates in ideal flow are compared for their suitability in energy harvesting of induced flutter instability via the reciprocating motion of the spring system. In previous work, it was found that compared to a fixed cantilever the introduction of the dynamic support in both systems yields lower flutter-onset flow speeds which is desirable for energy harvesting applications. The first system is a cantilevered thin flexible plate aligned with a uniform flow with the upstream end of the plate attached to a spring-mass system. We compare this system to one where the upstream end is hinged with a rotational spring at the mount. We map out the linear stability and power output characteristics of both systems with the introduction of dashpot damping at the mount. As expected the introduction of damping stabilises both systems and the order of magnitude of this stabilisation varies non-linearly for different levels of damping; this results in optimal points for energy harvesting for each system.
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spelling curtin-20.500.11937-77572017-01-30T11:02:19Z Power Output of Spring-Mounted Lifting Plates in Axial Flow Howell, Richard Lucey, Anthony In this paper, two different spring-mounting systems of lifting flexible plates in ideal flow are compared for their suitability in energy harvesting of induced flutter instability via the reciprocating motion of the spring system. In previous work, it was found that compared to a fixed cantilever the introduction of the dynamic support in both systems yields lower flutter-onset flow speeds which is desirable for energy harvesting applications. The first system is a cantilevered thin flexible plate aligned with a uniform flow with the upstream end of the plate attached to a spring-mass system. We compare this system to one where the upstream end is hinged with a rotational spring at the mount. We map out the linear stability and power output characteristics of both systems with the introduction of dashpot damping at the mount. As expected the introduction of damping stabilises both systems and the order of magnitude of this stabilisation varies non-linearly for different levels of damping; this results in optimal points for energy harvesting for each system. 2016 Book Chapter http://hdl.handle.net/20.500.11937/7757 Springer restricted
spellingShingle Howell, Richard
Lucey, Anthony
Power Output of Spring-Mounted Lifting Plates in Axial Flow
title Power Output of Spring-Mounted Lifting Plates in Axial Flow
title_full Power Output of Spring-Mounted Lifting Plates in Axial Flow
title_fullStr Power Output of Spring-Mounted Lifting Plates in Axial Flow
title_full_unstemmed Power Output of Spring-Mounted Lifting Plates in Axial Flow
title_short Power Output of Spring-Mounted Lifting Plates in Axial Flow
title_sort power output of spring-mounted lifting plates in axial flow
url http://hdl.handle.net/20.500.11937/7757