Wpływ parametrów konstrukcyjnych piasty na charakterystyki dynamiczne łopaty wirnika nośnego śmigłowca

A numerical analysis is presented permitting us to determine the of constructional parameters of the main rotor hub on the dynamic characteristics of the helicopter rotor blade. Making use of the dynamic model of a blade, presented in Ref [6], and toking into account different boundary conditions, and the displacement method of finite elements, the algorithm and the program were elaborated for a numerical analysis of the dynamic properties of the rotor hub and blade. By the analysis of the results of the calculations the influence has been determined of the respective constructional parameters of the rotor hub on the dynamic characteristics of the helicopter rotor blade.