阻尼夹层筋板结构有限元动力分析  

A Finite Element Dynamic Analysis of Stiffened Plates with Addition of Disconnected Damping Bands

作　　者：胡选利[1,2] 戴宗妙[1,2] 

机构地区：[1]西安交通大学 [2]郑州713研究所

出　　处：《应用力学学报》1998年第1期10-15,共6页Chinese Journal of Applied Mechanics

摘　　要：在小变形线弹性理论基础上，导出了粘弹性阻尼夹层筋板壳结构的有限元动力方程，构造了壳单元、阻尼夹层壳单元和开口薄壁梁单元。采用这些单元可以很好地模拟具有不连续阻尼夹层处理的筋板壳结构。数值分析采用［３］中提出的两次渐近法。通过一块阻尼加筋板的特征分析和振动测量，证实了所建立的有限元两次渐近法的良好精度和广泛的工程适用性。Based upon assumptions of small deformation and linear elasticity, the finite element formulas of stiffened plates/shells with addition of damping bands, including selection of element types and shape functions, are developed. The dual asymptotic method developed previously by the authors is employed to solve the finite element equation. Through eigenanalysis and vibration measurements of a stiffened plate with damping treatment on the skin areas between the adjacent stringers, it is validated that the analytical method and the computer software developed here have very well accuracy and wide engineering applicability.

关 键 词：阻尼夹层结构 加筋板 有限元 动力分析 渐近法 

分 类 号：O342[理学—固体力学] TU33[理学—力学]