Nieliniowe drgania elastycznie zawieszonych silników tłokowych przy kinematycznych wymuszeniach stochastycznych

The paper deals with nonlinear one-frequency vibrations of piston engines with six degrees of freedom, elastically mounted on transport means and randomly excited in consequence of an uneven road surface. Rotation velocity of the engine is treated as a variable. The correlation functions and dispersions of increments of vibration amplitude, phase angle and angular velocity of the engine, resulting from random movements of a vehicle, are derived by means of the linearization method.