Design and Research on Characteristics of a New Vibration Isolator with Quasi-zero-stiffness

摘要

In order to solve the problem of low-frequency vibration isolation, a new vibration isolator with quasi-zero-stiffness characteristic was designed and the relationship among design parameters was analyzed. Dynamic behavior was calculated based on harmonic balance method and simulation of the vibration isolation performance was carried out. Thus, force transmissibility of the system was obtained. The simulations showed that the designed system had the quasi-zero-stiffness characteristics at long range, good vibration isolation performance and could solve the inherent contradictions between the low-and-ultralow frequency vibration isolation and system stiffness.