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Blade Deformation Measurements with IPCT on an EC 135 Helicopter Rotor

Boden, Fritz and Maucher, Christoph (2013) Blade Deformation Measurements with IPCT on an EC 135 Helicopter Rotor. In: Research Topics in Aerospace Advanced In-Flight Measurement Techniques. Springer Verlag, Heidelberg New York Dordrecht London. pp. 195-213. ISBN 978-3-642-34737-5 . ISSN 2194-8240

Full text not available from this repository.

Official URL: http://link.springer.com/book/10.1007/978-3-642-34738-2/page/1

Abstract

For the design of a helicopter rotor blade, it is crucial to predict the dynamic behavior and occurring forces and moments. For the validation of prediction tools, reliable flight test data is required. Furthermore, flight test measurements are necessary for the calculation of fatigue loads. Today, strain gauges are applied to a helicopter rotor blade to perform measurements in flight test. Locally, they allow a precise strain measurement for the complete rotor revolution. This instrumentation implies a high effort. Furthermore, wiring can imply difficulties due to its weight and its modification of the aerodynamic shape. An optical measurement technique may overcome some of the limitations of strain gauges. A precise measurement of the deformation of the complete surface of the rotor blade allows to locate high strains and to identify oscillatory modes. The exact blade position can be identified optically. One of these advanced optical measurement techniques is the Image Pattern Correlation Technique (IPCT). Today, IPCT is a state of the art measurement technique for static and dynamic deformations. In AIM, DLR and Eurocopter explore the feasibility of Quantitative Video Technique (QVT) together with the Image Pattern Correlation Technique (IPCT) on the rotating main rotor blades of a flying helicopter. Ground tests of the measurement system on a whirl tower and a tied down helicopter are performed to verify the feasibility and performance of the measurement system previous to flight testing.

Item URL in elib:https://elib.dlr.de/82295/
Document Type:Contribution to a Collection
Additional Information:eBook: 978-3-642-34738-2, eISSN: 2194-8259, DOI: 10.1007/978-3-642-34738-2_13, Chapter 13
Title:Blade Deformation Measurements with IPCT on an EC 135 Helicopter Rotor
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Boden, Fritzfritz.boden (at) dlr.deUNSPECIFIED
Maucher, ChristophEurocopter Deutschland GmbHUNSPECIFIED
Date:2013
Journal or Publication Title:Research Topics in Aerospace
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 195-213
Editors:
EditorsEmail
Boden, FritzUNSPECIFIED
Lawson, NickolasCranfield University, National Flying Laboratory Centre, Beds, UK
Jentink, Henk W.NLR, Amsterdam, The Netherlands
Kompenhans, JürgenUNSPECIFIED
Publisher:Springer Verlag, Heidelberg New York Dordrecht London
Series Name:Advanced In-Flight Measurement Techniques
ISSN:2194-8240
ISBN:978-3-642-34737-5
Status:Published
Keywords:AIM, IPCT (Image Pattern Correlation Technique), helicopter rotor blade, Quantitative Video Technique (QVT)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:27 May 2013 16:22
Last Modified:01 Apr 2015 11:09

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