Active flutter suppression of wing with morphing flap

Yan Ouyang; Yingsong Gu; Xiping Kou; Zhichun Yang

doi:10.1016/j.ast.2020.106457

Active flutter suppression of wing with morphing flap

Yan Ouyang, Yingsong Gu, Xiping Kou, Zhichun Yang

School of Aeronautics

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The flutter characteristics of a wing with morphing flap are analyzed based on computational fluid dynamics (CFD) method. The unsteady aerodynamic reduced order model (ROM) is constructed to model the morphing flap with high accuracy, and the effect of flap camber on the wing flutter boundary is investigated. Active suppression of aeroelastic response by controlling the flap deflection is validated through numerical simulations. A Linear Quadratic Gaussian (LQG) compensator is designed to explore the potential of suppressing wing flutter by deflecting the flap actively. The simulation results show that the order of morphing flap camber may change the critical flutter speed and flutter frequency of the wing. Compared with the conventional plain flap, the morphing flap shows higher control efficiency with fewer deflection demands.

Original language	English
Article number	106457
Journal	Aerospace Science and Technology
Volume	110
DOIs	https://doi.org/10.1016/j.ast.2020.106457
State	Published - Mar 2021

Keywords

Active flutter suppression
LQG controller
Morphing flap
Reduced order model

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10.1016/j.ast.2020.106457

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title = "Active flutter suppression of wing with morphing flap",

abstract = "The flutter characteristics of a wing with morphing flap are analyzed based on computational fluid dynamics (CFD) method. The unsteady aerodynamic reduced order model (ROM) is constructed to model the morphing flap with high accuracy, and the effect of flap camber on the wing flutter boundary is investigated. Active suppression of aeroelastic response by controlling the flap deflection is validated through numerical simulations. A Linear Quadratic Gaussian (LQG) compensator is designed to explore the potential of suppressing wing flutter by deflecting the flap actively. The simulation results show that the order of morphing flap camber may change the critical flutter speed and flutter frequency of the wing. Compared with the conventional plain flap, the morphing flap shows higher control efficiency with fewer deflection demands.",

keywords = "Active flutter suppression, LQG controller, Morphing flap, Reduced order model",

author = "Yan Ouyang and Yingsong Gu and Xiping Kou and Zhichun Yang",

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year = "2021",

month = mar,

doi = "10.1016/j.ast.2020.106457",

language = "英语",

volume = "110",

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TY - JOUR

T1 - Active flutter suppression of wing with morphing flap

AU - Ouyang, Yan

AU - Gu, Yingsong

AU - Kou, Xiping

AU - Yang, Zhichun

PY - 2021/3

Y1 - 2021/3

N2 - The flutter characteristics of a wing with morphing flap are analyzed based on computational fluid dynamics (CFD) method. The unsteady aerodynamic reduced order model (ROM) is constructed to model the morphing flap with high accuracy, and the effect of flap camber on the wing flutter boundary is investigated. Active suppression of aeroelastic response by controlling the flap deflection is validated through numerical simulations. A Linear Quadratic Gaussian (LQG) compensator is designed to explore the potential of suppressing wing flutter by deflecting the flap actively. The simulation results show that the order of morphing flap camber may change the critical flutter speed and flutter frequency of the wing. Compared with the conventional plain flap, the morphing flap shows higher control efficiency with fewer deflection demands.

AB - The flutter characteristics of a wing with morphing flap are analyzed based on computational fluid dynamics (CFD) method. The unsteady aerodynamic reduced order model (ROM) is constructed to model the morphing flap with high accuracy, and the effect of flap camber on the wing flutter boundary is investigated. Active suppression of aeroelastic response by controlling the flap deflection is validated through numerical simulations. A Linear Quadratic Gaussian (LQG) compensator is designed to explore the potential of suppressing wing flutter by deflecting the flap actively. The simulation results show that the order of morphing flap camber may change the critical flutter speed and flutter frequency of the wing. Compared with the conventional plain flap, the morphing flap shows higher control efficiency with fewer deflection demands.

KW - Active flutter suppression

KW - LQG controller

KW - Morphing flap

KW - Reduced order model

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U2 - 10.1016/j.ast.2020.106457

DO - 10.1016/j.ast.2020.106457

M3 - 文章

AN - SCOPUS:85099189064

SN - 1270-9638

VL - 110

JO - Aerospace Science and Technology

JF - Aerospace Science and Technology

M1 - 106457

ER -

Active flutter suppression of wing with morphing flap

Abstract

Keywords

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