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Measurement of Aerodynamically Induced Blade Distortion on a Shrouded Counter-Rotating Prop-Fan

Klinner, Joachim and Schroll, Michael and Lengyel-Kampmann, Timea and Belz, Joachim and Eichner, Franziska and Winkelmann, Peter and Willert, Christian (2022) Measurement of Aerodynamically Induced Blade Distortion on a Shrouded Counter-Rotating Prop-Fan. 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, 11.-14. Jul. 2022, Lisbon, Portugal. ISBN 978-989-53637-0-4.

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Official URL: https://www.lisbonsimposia.org/

Abstract

Blade deformation on a 1 m diameter composite fan rotor is measured simultaneously using stereoscopic image pattern correlation technique (IPCT) and blade-tip imaging. Absolute referencing of the blades is made possible by simultaneously tracking a marker on the hub using a fourth camera. Illumination is provided by microsecond pulses of high-power LEDs. Rise and fall time in the 100ns regime are achieved using a self-designed high-current drive circuit. A high-speed microcontroller provides accurate, speed-independent angular delays to enable phase-locked triggering of cameras and LEDs. Mean and RMS deformation of the blade are acquired for different aerodynamic loading conditions induced by imposing a non-uniformity upstream of the rotor aimed at mimicking boundary layer ingestion.

Item URL in elib:https://elib.dlr.de/187566/
Document Type:Conference or Workshop Item (Speech)
Title:Measurement of Aerodynamically Induced Blade Distortion on a Shrouded Counter-Rotating Prop-Fan
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Klinner, JoachimJoachim.Klinner (at) dlr.dehttps://orcid.org/0000-0003-2709-9664
Schroll, MichaelMichael.Schroll (at) dlr.dehttps://orcid.org/0000-0003-0736-546X
Lengyel-Kampmann, Timeatimea.lengyel (at) dlr.deUNSPECIFIED
Belz, JoachimJoachim.Belz (at) dlr.deUNSPECIFIED
Eichner, FranziskaFranziska.Eichner (at) dlr.deUNSPECIFIED
Winkelmann, PeterPeter.Winkelmann (at) dlr.deUNSPECIFIED
Willert, ChristianChris.Willert (at) dlr.dehttps://orcid.org/0000-0002-1668-0181
Date:11 July 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-989-53637-0-4
Status:Published
Keywords:blade deformation, pulsed high-power LED illumination, image pattern correlation technique, IPCT, boundary layer ingestion, BLI, counter-rotating fan
Event Title:20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:11.-14. Jul. 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Future Engines and Engine Integration, L - Virtual Engine
Location: Göttingen , Köln-Porz , Stuttgart
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Fan and Compressor
Institute of Aeroelasticity > Aeroelastic Experiments
Institute of Structures and Design > Design and Manufacture Technologies
Deposited By: Willert, Dr.phil. Christian
Deposited On:15 Aug 2022 15:34
Last Modified:15 Aug 2022 15:34

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