Dynamic stiffness and vibration reduction efficiency of metal rubber

Based on the principle of compressive deformation of cylindrical helical spring, the dynamic equations of a metal rubber vibration isolation system were derived. The dynamic stiffness, frequency response and vibration characteristics of metal rubber were analyzed under the condition of simple harmonic excitation. According to the method of harmonic balance, the influence of excitation frequency on the metal rubber compression magnitude, and the influences of compression magnitude and excitation frequency on the metal rubber dynamic stiffness were analyzed. On the basis of the analysis of the metal rubber vibration isolation system, the effects of metal rubber height, cross-sectional area of working surface and excitation frequency on the shock isolation coefficient were studied. The shock isolation coefficient can provide a reference to the design of metal rubber and its applications in engineering.