Investigations Into Glider Chassis Load Spectrum

• Autorzy: Owczarek W. , Rodzewicz M.

Identyfikatory

DOI

10.2478/v10164-010-0014-x

• Języki publikacji: EN

Abstrakty

EN

The paper describes investigations on load spectrum of a glider chassis during take-off and landing. The experiments were conducted on different kinds of airfield surfaces, and recorded time-courses of loads acting on the main and front gear were used for analysis. The paper shortly describes the tests carried out on a PW-6 glider (description of the measurement system installed on the glider main and front landing gear). There is included a comparison of different methods used for time-courses analysis and full cycle counting. The following methods were used: local extremes count method, level exceeds count method, full cycles count method, rainflow count method, and a method developed by the first author. The outputs generated by application of the above mentioned methods for different test-time-courses of load, and the real time-courses of load observed during take-off and landing, are described. Paper presents also load spectrum for the main gear for take-off and landing on a grassy runway. This load spectrum were used later on an experimental stand, build by the authors for fatigue tests of special shock-absorbing element, made from GFRP composite for a new glider.

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2009
• Tom: Iss. 1
• Strony: 150--169
• Opis fizyczny: Bibliogr. 4 poz., fot., rys., wykr.

Twórcy

autor

Owczarek W.

• Warsaw University of Technology Warsaw, Poland

autor

Rodzewicz M.

• Warsaw University of Technology Warsaw, Poland

Bibliografia

• [1] Skarbiński A. & Staniej W. (1965). Projektowane i Konstrukcja Szybowców. Wydawnictwa Komunikacji i Łączności.
• [2] Topoliński T. Zmęczenie tworzyw polimerowych. Mechanizmy niszczenia, fenomenologiczne hipotezy procesu zmęczeniowego niszczenia.
• [3] Kocańda S. & Szala J. (1985). Podstawy obliczeń zmęczeniowych. Warsaw: PWN.
• [4] Owczarek, W. Spektrum obciążeń szybowca, praca przejściowa.