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Title: Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations

Abstract

Stall flutter is an aeroelastic phenomenon resulting in unwanted oscillatory loads on the blade, such as wind turbine blade, helicopter rotor blade, and other flexible wing blades. While the stall flutter and related aeroelastic control have been studied theoretically and experimentally, microtab control of asymmetric limit cycle oscillations (LCOs) in stall flutter cases has not been generally investigated. This paper presents an aeroservoelastic model to study the microtab control of the blade section undergoing moderate stall flutter and deep stall flutter separately. The effects of different dynamic stall conditions and the consequent asymmetric LCOs for both stall cases are simulated and analyzed. Then, for the design of the stall flutter controller, the potential sensor signal for the stall flutter, the microtab control capability of the stall flutter, and the control algorithm for the stall flutter are studied. Lastly, the improvement and the superiority of the proposed adaptive stall flutter controller are shown by comparison with a simple stall flutter controller.

Authors:
 [1];  [2];  [3];  [1];  [3]
  1. School of Hydraulic, Energy and Power Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
  2. Aerospace Engineering Department, Embry-Riddle Aeronautical University, Daytona Beach, FL 32114-3900, USA
  3. Wind Energy Center, University of Wyoming, Laramie, WY 82072, USA
Publication Date:
Research Org.:
Embry-Riddle Aeronautical Univ., Daytona Beach, FL (United States). Aerospace Engineering Department
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1242556
Alternate Identifier(s):
OSTI ID: 1254488
Grant/Contract Number:  
DESC0001261; SC0001261; 14KJB480006
Resource Type:
Published Article
Journal Name:
Shock and Vibration
Additional Journal Information:
Journal Name: Shock and Vibration Journal Volume: 2016; Journal ID: ISSN 1070-9622
Publisher:
Hindawi Publishing Corporation
Country of Publication:
Egypt
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Li, Nailu, Balas, Mark J., Nikoueeyan, Pourya, Yang, Hua, and Naughton, Jonathan W. Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations. Egypt: N. p., 2016. Web. doi:10.1155/2016/5096128.
Li, Nailu, Balas, Mark J., Nikoueeyan, Pourya, Yang, Hua, & Naughton, Jonathan W. Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations. Egypt. doi:10.1155/2016/5096128.
Li, Nailu, Balas, Mark J., Nikoueeyan, Pourya, Yang, Hua, and Naughton, Jonathan W. Fri . "Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations". Egypt. doi:10.1155/2016/5096128.
@article{osti_1242556,
title = {Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations},
author = {Li, Nailu and Balas, Mark J. and Nikoueeyan, Pourya and Yang, Hua and Naughton, Jonathan W.},
abstractNote = {Stall flutter is an aeroelastic phenomenon resulting in unwanted oscillatory loads on the blade, such as wind turbine blade, helicopter rotor blade, and other flexible wing blades. While the stall flutter and related aeroelastic control have been studied theoretically and experimentally, microtab control of asymmetric limit cycle oscillations (LCOs) in stall flutter cases has not been generally investigated. This paper presents an aeroservoelastic model to study the microtab control of the blade section undergoing moderate stall flutter and deep stall flutter separately. The effects of different dynamic stall conditions and the consequent asymmetric LCOs for both stall cases are simulated and analyzed. Then, for the design of the stall flutter controller, the potential sensor signal for the stall flutter, the microtab control capability of the stall flutter, and the control algorithm for the stall flutter are studied. Lastly, the improvement and the superiority of the proposed adaptive stall flutter controller are shown by comparison with a simple stall flutter controller.},
doi = {10.1155/2016/5096128},
journal = {Shock and Vibration},
number = ,
volume = 2016,
place = {Egypt},
year = {2016},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1155/2016/5096128

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