基于Hoff夹层板理论计算约束阻尼结构的结构损耗因子

PREDICTING THE MODAL LOSS FACTORS OF CONSTRAINED STRUCTURE BASED ON THE HOFF SANDWICH PLATE THEORY

利用Hoff夹层板理论研究约束阻尼结构的固有频率和模态损耗因子的计算问题。计算结果表明,利用Hoff理论计算约束阻尼结构固有频率和模态损耗因子方法具有较高的计算精度,与Ansys计算结果较为接近,可用于约束阻尼结构固有频率和结构损耗因子计算。

The Hoff sandwich plate theory was applied to predict the natural frequencies and modal loss factors of constrained structure. The calculating result indicated that the error of the method of predicting the natural frequencies and modal loss factors of constrained structure was very small, and was closed to ANSYS calculating result or other author＇ s calculating result. The method based on Hoff sandwich plate theory is suitable for calculating the natural frequencies and modal loss factors of constrained structure.