Response of a Multidegree‐of‐Freedom System of Variable Coefficients to Random Excitation

This paper presents a method of determining probabilistic characteristics concerning the response of a multidegree‐of‐freedom system with variable coefficients to random excitation. This method is based on the application of a stochastic Volterra integral equation of the second kind and not on the multidegree impulsive response (Green's function) difficult to calculate for this type of the systems. On the Basis of the suggested method there have been carried out numerical calculations concerning the variance of the response of the two‐degree‐of‐freedom system with variable mass.