Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices
The aim of this paper is the assessment of the capability of controllers based on the combined actuation of flaps and variable-stiffness devices to alleviate helicopter main rotor vibratory hub loads. Trailing-edge flaps are positioned at the rotor blade tip region, whereas variable-stiffness device...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/485964 |
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| author | Massimo Gennaretti Giovanni Bernardini Jacopo Serafini Marco Molica Colella |
| author_facet | Massimo Gennaretti Giovanni Bernardini Jacopo Serafini Marco Molica Colella |
| author_sort | Massimo Gennaretti |
| collection | DOAJ |
| description | The aim of this paper is the assessment of the capability of
controllers based on the combined actuation of flaps and
variable-stiffness devices to alleviate helicopter main rotor
vibratory hub loads. Trailing-edge flaps are positioned at the
rotor blade tip region, whereas variable-stiffness devices are
located at the pitch link and at the blade root. Control laws are
derived by an optimal control procedure based on the best
trade-off between control effectiveness and control effort, under
the constraint of satisfaction of the equations governing rotor
blade aeroelastic response. The numerical investigation concerns
the analysis of performance and robustness of the control
techniques developed, through application to a four-bladed
helicopter rotor in level flight. The identification of the most
efficient control configuration is also attempted. |
| format | Article |
| id | doaj-art-e82a6a30a2cc4b7aaf8f8625516698eb |
| institution | OA Journals |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-e82a6a30a2cc4b7aaf8f8625516698eb2025-08-20T02:21:39ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742015-01-01201510.1155/2015/485964485964Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness DevicesMassimo Gennaretti0Giovanni Bernardini1Jacopo Serafini2Marco Molica Colella3Department of Engineering, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, ItalyDepartment of Engineering, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, ItalyDepartment of Engineering, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, ItalyDepartment of Engineering, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, ItalyThe aim of this paper is the assessment of the capability of controllers based on the combined actuation of flaps and variable-stiffness devices to alleviate helicopter main rotor vibratory hub loads. Trailing-edge flaps are positioned at the rotor blade tip region, whereas variable-stiffness devices are located at the pitch link and at the blade root. Control laws are derived by an optimal control procedure based on the best trade-off between control effectiveness and control effort, under the constraint of satisfaction of the equations governing rotor blade aeroelastic response. The numerical investigation concerns the analysis of performance and robustness of the control techniques developed, through application to a four-bladed helicopter rotor in level flight. The identification of the most efficient control configuration is also attempted.http://dx.doi.org/10.1155/2015/485964 |
| spellingShingle | Massimo Gennaretti Giovanni Bernardini Jacopo Serafini Marco Molica Colella Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices International Journal of Aerospace Engineering |
| title | Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices |
| title_full | Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices |
| title_fullStr | Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices |
| title_full_unstemmed | Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices |
| title_short | Helicopter Vibratory Loads Alleviation through Combined Action of Trailing-Edge Flap and Variable-Stiffness Devices |
| title_sort | helicopter vibratory loads alleviation through combined action of trailing edge flap and variable stiffness devices |
| url | http://dx.doi.org/10.1155/2015/485964 |
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