Drgania układu samowzbudnego z wymuszeniem parametrycznym i nieliniową sprężystością

In this work there were considered the vibrations of a system with the soft self-excitation, the parametric input and with a non-linear characteristic of the cubical type elasticity. Considering the problems of the existence and stability of the issues of the differential equation there were defined the effects of the mutual influence of self-periodic vibrations in the determinate range of the parametric force's frequency. Analytical researches were proceeded under the certain, simplifying conditions, which influence was defined with the method of an analogue modelling.