Innovative approaches and technologies for solving the problem of controlling the stiffness of the blades for implementation in promising rotary-wing aircraft
The article sets out the tasks and directions of improving the elements of load–bearing systems in the development of projects for the creation of rotary-wing aircraft (VKLA), and also suggests some approaches for the transition to «hybrid» VKLA - with variable rotor speeds in a wide range for flight in both helicopter and airplane configurations. It is noted that in order to exclude resonances of the rotor blades (LNV) when changing revolutions, it is necessary to develop an innovative bearing system in which the so–called «concept of blade stiffness control» (SBC - Stiffness Blade Control) is implemented «through the use of piezoactuators controlled by an artificial neural network. The technical solutions proposed in the article partially expand the scientific and technical groundwork already achieved in this problem area related to the creation of high-speed VKLA
Keywords: flight speed, hybrid helicopter, blade, frequency diagram, piezoactuator.
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