Investigations into Load Spectra of UAVS Aircraft

• Autorzy: Rodzewicz M. , Głowacki D.

Identyfikatory

DOI

10.2478/fas-2013-0004

• Języki publikacji: EN

Abstrakty

EN

The paper contains a description of a novel approach to the load spectra estimation applied to UAVs. The authors have developed a number of tools in the LabVIEW environment enabling an in-depth analysis of flight-log data. One major achievement was the separation of the load spectra induced by steering and the load spectra induced by turbulence. The authors have shown a significant influence of both of the main load sources on the fatigue life of the UAV airframe, calculated based on the P-M hypothesis. This approach to fatigue testing of composite UAV airframes needs to take into account the rate of load variations as these may affect the fatigue life of tested structures. The paper presents several schemes of calculation algorithms and a number of well-illustrated examples of the tests and investigations results.

Słowa kluczowe

EN

UAV loads; load spectrum; manual control; autopilot

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2013
• Tom: Iss. 5
• Strony: 40--52
• Opis fizyczny: Bibliogr. 5 poz., fot., rys., tab., wykr.

Twórcy

autor

Rodzewicz M.

• Warsaw University of Technology Institute of Aeronautics and Applied Mechanics Warsaw, Poland

autor

Głowacki D.

• Warsaw University of Technology Institute of Aeronautics and Applied Mechanics Warsaw, Poland

Bibliografia

• [1]. M.Rodzewicz, D.Głowacki Investigations into load spectrum and strength tests of an UAV structure, The READ 2012 Conference (Research and Education in Aircraft Design) - October 2012 Brno
• [2]. M. Rodzewicz Determination and extrapolation of the glider load spectra. Volume 80 Issue 5 of Aircraft Engineering and Aerospace Technology, pp. 487 - 496
• [3]. M. Rodzewicz Fatigue evaluation of high-loaded aeronautical composite structures. Aircraft Engineering and Aerospace Technology, Vol 81, No 5, pp 452 - 460
• [4]. Rodzewicz M., Czerwiński G., Kubica B. J.: Load spectrum - archiving, analysis and load sequences reproduction (in Polish), Proceedings of XIII Conf. Mechanics in Aviation, PTMTS ML-XIII 2008, vol. 1, pp.43 - 55
• [5]. Owczarek W., Rodzewicz M. Investigations into glider chassis load spectrum, Fatigue of Aircraft Structures Monographic Series, Issue 2009, pp 150 - 170.