Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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CALCULATION AND PERFORMANCE OPTIMIZATION AMPHIBIOUS TRANSPORT CARS WITH AERODYNAMIC PROPULSORS

Sokolov G.M. 1 Kirkin S.F. 1 Korotkov P.A. 1
1 Volga State University of Technology
The analysis of the motion modes of an amphibious vehicle with an aerodynamic propulsion device has been carried out. It has been established that the process when a loaded vehicle climbs from water onto ice is the most complex operational mode, which determines the key characteristics of the propulsion device – engine power and the maximum value of the tractive effort of a propeller. A mathematical model, describing the process when a loaded vehicle comes out of water onto ice, has been developed. The model enables optimization of the operating parameters of the amphibian which determine its fuel and energy efficiency. The key operating parameters of the amphibious vehicle Caspiy-2, climbing from water onto ice, have been calculated. It has been established that the operating parameters are not optimal. The main ways of improvement of the key performance characteristics are optimization of the longitudinal profile of the vehicle body, the position of the centre of gravity along with the weight characteristics, the propeller mounting height and a number of other factors.