Эффект "застревания" маятника на вращающемся валу. Моделирование и анализ

Abstract

The authors carried out the modeling of the motion of a pendulum mounted with the possibility of free rotation on the rotor shaft of an electric motor fixed in a housing on elastic supports. The peculiarities of the motion of the pendulum within the range from zero to a given value of the angular velocity of the rotor of the electric motor with the presence in this range of natural frequencies of oscillations of the mechanical system are revealed. It is established that when changing the inertia moment of a pendulum or friction moment in pendulum support, there is possible mode of movement when the rotor rotates with a given angular velocity, and the angular velocity of the pendulum rotation is equal to one of the natural frequencies of the mechanical system. In previous studies this effect was named the effect of "sticking".