Aerodynamic and flight dynamic interaction in spin
PBN-AR
Instytucja
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
AIRCRAFT ENGINEERING AND AEROSPACE TECHNOLOGY
ISSN
1748-8842
EISSN
Wydawca
EMERALD GROUP PUBLISHING LIMITED
DOI
URL
Rok publikacji
2019
Numer zeszytu
3
Strony od-do
437-447
Numer tomu
91
Link do pełnego tekstu
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Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 2
Autorzy przekładu
(liczba autorów przekładu: 0)
Streszczenia
Język
angielski
Treść
Purpose The purpose of this paper is to describe an integrated approach to spin analysis based on 6-DOF (degrees of freedom) fully nonlinear equations of motion and a three-dimensional multigrid Euler method used to specify a flow model. Another purpose of this study is to investigate military trainer performance during a developed phase of a deliberately executed spin, and to predict an aircraft tendency while entering a spin and its response to control surface deflections needed for recovery. Design/methodology/approach To assess spin properties, the calculations of aerodynamic characteristics were performed through an angle-of-attack range of −30 degrees to +50 degrees and a sideslip-angle range of −30 degrees to +30 degrees. Then, dynamic equations of motion of a rigid aircraft together with aerodynamic loads being premised on stability derivatives concept were numerically integrated. Finally, the examination of light turboprop dynamic behaviour in post-stalling conditions was carried out. Findings The computational method used to evaluate spin was positively verified by comparing it with the experimental outcome. Moreover, the Euler code-based approach to lay down aerodynamics could be considered as reliable to provide high angles-of-attack characteristics. Conclusions incorporate the results of a comparative analysis focusing especially on comprehensive assessment of output data quality in relation to flight tests. Originality/value The conducted calculations take into account aerodynamic and flight dynamic interaction of an aerobatic-category turboprop in spin conditions. A number of manoeuvres considering different aircraft configurations were simulated. The computational outcomes were subsequently compared to the results of in-flight tests and the collected data were thoroughly analysed to draw final conclusions.
Inne
System-identifier
PX-5d5cff52d5de1e4b82b2ef5c
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