Conference Paper/Proceeding/Abstract 187 views
Experimental Active Gust Load Alleviation via an Actuated Wingtip
Majid Ahmadi Tehrani,
JAMES ELLIS,
Turaç Farsadi,
Shakir Jiffri 
,
Hamed Haddad Khodaparast ,
Michael Friswell
,
Hamed Haddad Khodaparast ,
Michael Friswell
AIAA SCITECH 2025 Forum
Swansea University Authors:
JAMES ELLIS, Shakir Jiffri , Hamed Haddad Khodaparast , Michael Friswell
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DOI (Published version): 10.2514/6.2025-0715
Abstract
This paper investigates experimental methods for Gust Load Alleviation (GLA) on aircraft wings, focusing on reducing wing root bending moments through the application of Active Controlled Folding Wingtip (ACFWT) devices. Two approaches to implementing ACFWTs are explored. The first approach employs...
| Published in: | AIAA SCITECH 2025 Forum |
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| ISBN: | 978-1-62410-723-8 |
| Published: |
Reston, Virginia
American Institute of Aeronautics and Astronautics
2025
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa70416 |
| Abstract: |
This paper investigates experimental methods for Gust Load Alleviation (GLA) on aircraft wings, focusing on reducing wing root bending moments through the application of Active Controlled Folding Wingtip (ACFWT) devices. Two approaches to implementing ACFWTs are explored. The first approach employs a brushed DC motor to control wingtip rotation, with Proportional-Derivative (PD) control enhancing gust load reduction by influencing the stiffness and damping in the bending mode. Feedback is based on the wingtip's out-of-plane motion, which is indicative of root bending moments. The second approach utilises a more advanced aero-servo-elastic system integrated with a PID (Proportional-Integral-Derivative) controller. Here, wing root bending moments are directly used as the feedback variable, with the control strategy driving the error between desired and actual moments to zero. This approach demonstrates superior load mitigation, particularly at gust frequencies close to the wing's natural frequency. The results show that both methods effectively mitigate gust-induced loads and reduce wing root bending moments across varying gust frequencies and angles of attack. The dynamic response of the folding wingtip, including upward and downward deflections, redistributes aerodynamic loads while maintaining structural stability. This study highlights the potential of ACFWT systems to enhance aerodynamic performance and structural integrity under gust loading conditions. |
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| Keywords: |
Gust Load Alleviation, Active Control, Active Wingtip |
| College: |
Faculty of Science and Engineering |