Performance Optimization of Composite Constrained Viscoelastic Structure with Stand-off Layer

In this paper, a typical structure was taken as the object of study, and the optimization of the vibration reduction was carried out from two aspects:the constraint layer and the stand-off layer. By using the general finite element software ANSYS and with the natural frequency, loss factor and frequency response curve as the evaluation parameters, factors influencing the dynamic performances of the typical structure were analyzed.