约束阻尼板结构的有限元法研究及振动分析

Finite Element Method Study and Vibration Analysis of Constrained Layer Damped Plates

利用粘弹阻尼结构进行减振降噪具有良好的效果，尤其在宽频激励时．它具有结构紧凑、质量轻、便于操作等特点．在航天航空、轻工纺织汽车船舶等行业，已经取得了广泛应用。

According to the mechanism of energy dissipation of damped plates,a new finite element model for constrained damped plate is presented in this paper,which has only 28 degrees of freedom and takes a careful consideration of displacement consistence between layers.Results of the numerical example show that the model presented in this paper is not only more precise, more convenient,but also saves CPU time and computer memory.