Advanced composite wings for whirl flutter augmentation: Wind tunnel model design

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A new wing composite box beam has been designed based on the WRAST model. The newly designed wing has detailed structural properties, and is used to evaluate the effectiveness of wing extensions and winglets to improve tiltrotor whirl flutter stability. The frequencies and damping characteristics of the new wing are analyzed, and they are comparable to the WRAST wing model. Sizing of wing extension and winglet beam structures has also been conducted. The simulation results have confirmed the effectiveness of wing extension and winglet. They can significantly improve the wing beam bending and torsion mode damping, and the current designs of wing, wing extension and winglet structures are suitable to be used in wind tunnel for prove of concept tests. Structural tailoring of wing extension box beam has also been conducted, and both beam bending stiffness tuning and beam bending-torsion coupling through composite tailoring of wing extension box beam have been found to be able to increase the wing beam mode flutter speed by 35-40 knots.

Original languageEnglish (US)
Title of host publication56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624103421
StatePublished - Jan 1 2015
Event56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015 - Kissimmee, United States
Duration: Jan 5 2015Jan 9 2015

Publication series

Name56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Other

Other56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015
CountryUnited States
CityKissimmee
Period1/5/151/9/15

Fingerprint

Flutter (aerodynamics)
Wind tunnels
Composite materials
Bending (forming)
Torsional stress
Damping
Structural properties

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Mechanics of Materials
  • Building and Construction

Cite this

Zhang, J., & Smith, E. C. (2015). Advanced composite wings for whirl flutter augmentation: Wind tunnel model design. In 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference). American Institute of Aeronautics and Astronautics Inc..
Zhang, Jianhua ; Smith, Edward C. / Advanced composite wings for whirl flutter augmentation : Wind tunnel model design. 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc., 2015. (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).
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title = "Advanced composite wings for whirl flutter augmentation: Wind tunnel model design",
abstract = "A new wing composite box beam has been designed based on the WRAST model. The newly designed wing has detailed structural properties, and is used to evaluate the effectiveness of wing extensions and winglets to improve tiltrotor whirl flutter stability. The frequencies and damping characteristics of the new wing are analyzed, and they are comparable to the WRAST wing model. Sizing of wing extension and winglet beam structures has also been conducted. The simulation results have confirmed the effectiveness of wing extension and winglet. They can significantly improve the wing beam bending and torsion mode damping, and the current designs of wing, wing extension and winglet structures are suitable to be used in wind tunnel for prove of concept tests. Structural tailoring of wing extension box beam has also been conducted, and both beam bending stiffness tuning and beam bending-torsion coupling through composite tailoring of wing extension box beam have been found to be able to increase the wing beam mode flutter speed by 35-40 knots.",
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Zhang, J & Smith, EC 2015, Advanced composite wings for whirl flutter augmentation: Wind tunnel model design. in 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, American Institute of Aeronautics and Astronautics Inc., 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015, Kissimmee, United States, 1/5/15.

Advanced composite wings for whirl flutter augmentation : Wind tunnel model design. / Zhang, Jianhua; Smith, Edward C.

56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc., 2015. (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Zhang, Jianhua

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PY - 2015/1/1

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N2 - A new wing composite box beam has been designed based on the WRAST model. The newly designed wing has detailed structural properties, and is used to evaluate the effectiveness of wing extensions and winglets to improve tiltrotor whirl flutter stability. The frequencies and damping characteristics of the new wing are analyzed, and they are comparable to the WRAST wing model. Sizing of wing extension and winglet beam structures has also been conducted. The simulation results have confirmed the effectiveness of wing extension and winglet. They can significantly improve the wing beam bending and torsion mode damping, and the current designs of wing, wing extension and winglet structures are suitable to be used in wind tunnel for prove of concept tests. Structural tailoring of wing extension box beam has also been conducted, and both beam bending stiffness tuning and beam bending-torsion coupling through composite tailoring of wing extension box beam have been found to be able to increase the wing beam mode flutter speed by 35-40 knots.

AB - A new wing composite box beam has been designed based on the WRAST model. The newly designed wing has detailed structural properties, and is used to evaluate the effectiveness of wing extensions and winglets to improve tiltrotor whirl flutter stability. The frequencies and damping characteristics of the new wing are analyzed, and they are comparable to the WRAST wing model. Sizing of wing extension and winglet beam structures has also been conducted. The simulation results have confirmed the effectiveness of wing extension and winglet. They can significantly improve the wing beam bending and torsion mode damping, and the current designs of wing, wing extension and winglet structures are suitable to be used in wind tunnel for prove of concept tests. Structural tailoring of wing extension box beam has also been conducted, and both beam bending stiffness tuning and beam bending-torsion coupling through composite tailoring of wing extension box beam have been found to be able to increase the wing beam mode flutter speed by 35-40 knots.

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M3 - Conference contribution

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Zhang J, Smith EC. Advanced composite wings for whirl flutter augmentation: Wind tunnel model design. In 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc. 2015. (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).