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Blade Property Measurement and Its Assessment on Air/Structural Loads of HART II Rotor

Jung, Sung N. and You, Young H. and Dhadwal, Manoj K. and Hagerty, Brandon P. and Riemenschneider, Johannes and Keimer, Ralf (2014) Blade Property Measurement and Its Assessment on Air/Structural Loads of HART II Rotor. In: AHS International 70th Annual Forum. AHS Annual Forum 70, 20.-22. May 2014, Montreal, Quebec, Kanada.

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In this study, the structural properties of Higher-harmonic Aeroacoustic Rotor Test (HART) II blades are determined using the state-of-the-art test techniques. The easurement includes bending and torsion stiffnesses, section geometric offsets, and mass and inertia properties. Several HART II blades including the original instrumented blade used for the wind tunnel test campaign in 2001 are employed for the activity. A finite element based cross-section analysis combined with the x-ray computer tomography technique is used for cases where no mechanical measurement is attempted. The resulting structural properties are correlated against the earlier estimated ones. It is found that the earlier properties overestimate the section values substantially. The comprehensive rotor dynamics analysis is performed to quantify the impact of the measured blade properties on the aeroelastic behavior of the rotor. The location of center of gravity is demonstrated to be the most influential factor affecting the correlation of the rotor.

Item URL in elib:https://elib.dlr.de/91256/
Document Type:Conference or Workshop Item (Speech)
Title:Blade Property Measurement and Its Assessment on Air/Structural Loads of HART II Rotor
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Jung, Sung N.Konkuk UniversityUNSPECIFIED
You, Young H.Konkuk UniversityUNSPECIFIED
Dhadwal, Manoj K.Konkuk UniversityUNSPECIFIED
Hagerty, Brandon P.NASA CaliforniaUNSPECIFIED
Riemenschneider, JohannesInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Keimer, RalfInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Date:May 2014
Journal or Publication Title:AHS International 70th Annual Forum
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Active Twist, Testing, Model Rotor Blades
Event Title:AHS Annual Forum 70
Event Location:Montreal, Quebec, Kanada
Event Type:international Conference
Event Dates:20.-22. May 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Stanitzek, Silke
Deposited On:22 Oct 2014 11:12
Last Modified:22 Oct 2014 11:12

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