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Boleslaw STASICKI (DLR Goettingen)

“Deforming Helicopter Rotor Blade” caught by 3D Non-intrusive In-flight Measurement

Title: A 3D imaging system for the non-intrusive in-flight measurement of the deformation of aircraft propeller and helicopter rotor
Author: Boleslaw Stasicki, Fritz Boden and Krzysztof Ludwikowski1
Affiliation: German Aerospace Center, Institute of Aerodynamics and Flow Technology, Goettingen, Germany
1 HARDsoft Microprocessor Systems, Kraków, Poland
 
Boleslaw Stasicki

Fritz Boden

Krzysztof Ludwikowski
Email: Boleslaw.Stasicki[at]dlr.de
Abstract:
Huge centrifugal force requires special stiff mounting technology of the image sensors and the driving and control boards, e. g., wireless connections.

A pair of stereo-high-speed video cameras attached to the propeller shaft

On-flight measurement of deformation of a propeller.
The non-intrusive in-flight measurement of the deformation and the resulting local pitch of an aircraft propeller or helicopter rotor blade is a demanding task. The idea of an imaging system integrated and rotating with the aircraft propeller has already been presented at the 30th International Congress on High-Speed Imaging and Photonics (ICHSIP30) in 2012. Since then this system has been designed, constructed and tested in the laboratory as well as on real aircraft. Based on the gained experience a new rotating system for the application on helicopter rotors is now being constructed. In this paper we outline the principle of the applied Image Pattern Correlation Technique (IPCT), a specialized type of Digital Image Correlation (DIC), and describe the construction of the rotating 3D image acquisition system. Further, the results of the ground and in-flight tests will be shown and discussed.
Biographical Sketch: Boleslaw Stasicki was born in 1945. He studied electrical engineering at the Mining and Metallurgy Academy (AGH) of Cracow / Poland and in 1985 received his PhD from the Polish Academy of Sciences. He worked from 1981 to 1991 as a research scientist at the Max-Planck-Institut fuer Stroemungs-forschung in Goettingen, Germany. Since 1991 he has been employed at the German Aerospace Center in Goettingen. He was habilitated in 2012 at the Institute of Fundamental Technological Research of Polish Academy of Sciences in Warsaw. His research interests include the developing of measurement methods and designing of scientific instruments, in particular involving non-standard video techniques.
Author / co-author of 140 publications and 41 patents.
Correspondence address:
German Aerospace Center (DLR), Goettingen, Germany. www.dlr.de
Tel: +49 551 709 2890
e-mail: boleslaw.stasicki[at]dlr.de

Fritz Boden born 1979 in Dresden (Germany) finished his studies at the Technical University in Dresden in the branch of Aeronautical Engineering in 2005. First he started working at the DLR Braunschweig for the Department of Technical Acoustics. Later he changed to DLR Göttingen where he works in the development of optical measurement techniques, especially IPCT, for in-flight application. He was coordinator of the AIM project and the AIM² project. He performed several flight testing activities on Airbus A320, A380, A350, Piaggio P.180 and EVEKTOR VUT-100 Cobra. His research interests include the development of measurement methods, in particular of optical methods for deformation and flow measurements.
Author / co-author of 78 publications and one patent.
Correspondence address:
German Aerospace Center (DLR), Goettingen, Germany. www.dlr.de
Tel: +49 551 709 2299
e-mail: fritz.boden[at]dlr.de

Krzysztof Ludwikowski born in 1966 in Mielec, Poland, finished his studies at AGH University of Science and Technology in Cracow, faculty of Electrical Engineering, Automatics, Computer science and Electronics in 1992. He first started working at the ARCO company on the design of electronic devices. In 1995 he founded the company HARDsoft Microprocessor Systems Ltd. He designs and constructs: measurement and control devices, programmable digital cameras, LED light sources and other systems used in research and development. Correspondence address:
HARDsoft Microprocessor Systems Ltd. Kraków, Poland
http://www.hardsoft.kki.pl/
Tel: +48 12 296 42 66
e-mail: k.ludwikowski[at]hardsoft.com.pl

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