摘要
利用Reissner夹层板理论研究了约束阻尼结构的固有频率和模态损耗因子的计算。由于Reissner理论的基本假定简化较多,计算精度相对较低,因此,对该约束阻尼结构固有频率和模态损耗因子的计算方法进行了修正。其计算结果与Ansys计算结果较为接近。计算结果表明:利用修正后的计算方法具有较高的计算精度,可用于约束阻尼结构固有频率和模态损耗因子计算。
The Reissner sandwich plate theory was applied to predicting the natural frequencies and modal loss factors of constrained damping structure. As the basic hypothesis of the Reissner theory was excessively simplified leading to lower computed accuracy, the method of predicting the natural frequencies and the modal loss factors of constrained damping structure was improved. The improved computing result is fairly close to that of the Ansys. The improved Reissner method is fit for calculating the natural frequencies and modal loss factors of constrained damping structure.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2006年第6期1064-1067,共4页
Acta Armamentarii
关键词
固体力学
粘弹性
约束阻尼结构
固有频率
模态损耗因子
solid mechanics
viscoelasticity
constrained damping structure
natural frequency
modal loss factor
