ANALYSIS OF THE REACTIVE PROPERTIES OF THE DYNAMIC STIFFNESSES AND TRANSFER FUNCTIONS OF HYDROMOUNTS WITH INTERMEDIATE MASSES

Two schemes of vibroisolation systems incorporating rubber vibroisolators with attached fluid volumes hydromounts are considered. An intermediate mass is introduced into the dynamic models. In the first scheme, it is placed between the elastic element and the hydromount. In the other scheme, an intermediate mass is placed between two rubber elements, and the hydromount has four chambers connected by a pipe. The specific features of the arrangement of the zeros and poles of the frequency functions - dynamic stiffnesses and transfer functions are discussed.