Research and Optimization of Nonlinear Damping Vibration Isolator based on Parallelogram Linkage

A method is proposed to analyse and optimize the performance of nonlinear damping vibration isolator based on parallelogram linkage. Establish differential equation system, perform Taylor expansion coefficient, then obtain steady-state response system under harmonic excitation through methods such as perturbation averaging method. The displacement transfer rate curve has a high degree fitting with obtained by multi-body dynamics software, which proves accuracy Taking resonant peak optimization target, taking high-frequency transmission constraint condition, design rod length coefficient mechanism. Comparing traditional damping, optimized more obvious suppression effect resonance when both rates are close at frequencies. analysis in this paper convenient parameterize good programmability, means that it provides simple effective new for parameterization