The main feature of the VSNI is that the isolated object is supported by a mechanism including wedge-roller-air spring (named the main mechanism-MM) meanwhile the model of VSNI can obtain the lower resonance frequency and the higher vibration attenuation than the equivalent linear isolation model (ELIM) but guarantee the load bearing capacity through introducing a cam-roller-air spring (named auxiliary mechanism-AM). | Variable stiffness nonlinear isolator Design analysis and simulation
