The article considers the problem of optimal individual control for the rotor blade during helicopter main rotor speedup in wind conditions. Movement of the blade during the main rotor speedup can be described using a system of differential equations taking into consideration its combined bending and torsional vibrations. However, performing calculations for such detailed model requires significant computational resources and time, which complicates the practical solution of optimization problem. Therefore, the mathematical model of combined bending-torsional vibrations of the rotor blade is approximated by an artificial neural network and using this approximation a search for optimal control is carried out by the nonlinear programming method. The paper provides results of numerical experiment that confirms applicability of the chosen approach to problem solution.
Kargaev et al. (Wed,) studied this question.