Precession Vibrations of the Two-Blade Rotor with the Elastic Weightless Shaft in Compound Rotation

The problem of precession vibrations of the rigid two-blade rotor with the elastic weightless shaft in compound rotation, when its axis executes an additional forced slew, was stated. The equations of vibrations of the system were derived, their periodic solutions for the case of steady motion were found at different values of the angular velocity of its own rotation. The resonance value of this velocity was determined, the amplitude-frequency characteristics in the pre- and postresonance states were plotted.