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Progress on Gust Load Alleviation Wind Tunnel Experiment and Aeroservoelastic Model Validation for a Flexible Wing with Variable Camber Continuous Trailing Edge Flap SystemThis paper discusses a wind tunnel experiment of active gust load alleviation of a flexible wing which took place at University of Washington (UW) in 2019. The experiment performed under a NASA SBIR contract with Scientific Systems Company, Inc (SSCI). The objective of the experiment is to demonstrate active controls of the Variable Camber Continuous Trailing Edge Flap (VCCTEF) system for gust load alleviation and real-time drag optimization. The wind tunnel model is a 8.2% sub-scale Common Research Model (CRM) wing. The wing structure is designed to provide a substantial degree of flexibility to represent that of a modern high-aspect ratio wing. Eight active control surfaces are employed in the VCCTEF. A new gust generator system was designed and installed by UW under a sub-contract with SSCI. The first test entry started in July 2019 and ended in September 2019. During this test entry, many significant issues were found with the hardware and software. The significant issues with the servos prevented the test objective from being completed. A follow-up second test entry in 2020 is being planned. The wing system is being repaired by SSCI. This paper reports on the progress of this experimental effort and the aeroservoelastic (ASE) model validation which was conducted during the test entry.
Document ID
20200000332
Acquisition Source
Ames Research Center
Document Type
Conference Paper
External Source(s)
doi:10.2514/6.2020-0214
Authors
Nguyen, Nhan (NASA Ames Research Center Moffett Field, CA, United States)
Cramery, Nicholas (NASA Ames Research Center Moffett Field, CA, United States)
Hashemiz, Kelley (NASA Ames Research Center Moffett Field, CA, United States)
Drew, Michael (Stinger Ghaffarian Technologies Inc. (SGT Inc.) Moffett Field, CA, United States)
Xiong, Juntao (Stinger Ghaffarian Technologies Inc. (SGT Inc.) Moffett Field, CA, United States)
Mundt, Tyler (Washington Univ. Seattle, WA, United States)
Mor, Marat (Washington Univ. Seattle, WA, United States)
Livne, Eli (Washington Univ. Seattle, WA, United States)
Jackson, Joseph (Scientific Systems Co., Inc. Woburn, MA, United States)
Wise, Richard (Scientific Systems Co., Inc. Woburn, MA, United States)
Shultz, Adam (Scientific Systems Co., Inc. Woburn, MA, United States)
Boskovic, Jovan (Scientific Systems Co., Inc. Woburn, MA, United States)
Date Acquired
January 16, 2020
Publication Date
January 6, 2020
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA 2020-0214
ARC-E-DAA-TN76417
Meeting Information
Meeting: AIAA Scitech 2020 Forum
Location: Orlando, FL
Country: United States
Start Date: January 6, 2020
End Date: January 10, 2020
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
CONTRACT_GRANT: NNA14AA60C
CONTRACT_GRANT: NNX15CA16C
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
External Peer Committee

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