ASSESSING THE ADEQUACY OF MATHEMATICAL MODELS OF THE MI-8MTV HELICOPTER DYNAMICS IN TERMS OF CONTROLLABILITY
Abstract
The article considers the adequacy of a mathematical model of Mi-8MTV helicopter dynamics with an external load in terms of controllability, based on comparison of data obtained from computational experiments and flight testing. The results of evaluation of the Mi-8MTV helicopter mathematical model are presented along with evaluation of the joint mathematical models of helicopter dynamics and dynamics of the external load. Data from flight tests without external load, as well as conclusions made based on flight test results for a helicopter with external load were used as data on the behavior of the real object. The article provides the main results of computational experiments and flight tests. The data is presented in form of the following dependencies: time change of pitch angle and bank angle at a predefined control input; increase of attitude rate of the helicopter; deflection of load in the pitch plane; variations of cable pull force. Based on the analysis of the results of computational experiments a positive conclusion was reached on the adequacy of the mathematical model of dynamics of the Mi-8MTV helicopter with external load in regard to input control reaction. The software based on the model was recognized as a suitable instrument for studying helicopter controllability.
About the Authors
G. N. Babenko
МГТУ ГА
Russian Federation
Russian Federation
V. V. Efimov
МГТУ ГА
Russian Federation
Russian Federation
V. A. Ivchin
ОАО «МВЗ им М.Л. Миля»;
МГТУ ГА
Russian Federation
Russian Federation
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Review
For citations:
Babenko G.N., Efimov V.V., Ivchin V.A. ASSESSING THE ADEQUACY OF MATHEMATICAL MODELS OF THE MI-8MTV HELICOPTER DYNAMICS IN TERMS OF CONTROLLABILITY. Civil Aviation High Technologies. 2016;(226):175-182. (In Russ.)
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