噪声与振动控制2018，Vol.38Issue(z1)：71-74,4.DOI:10.3969/j.issn.1006-1355.2018.Z1.014
中空薄板能量密度求解
Calculation of Energy Density of Hollow Thin Plates
摘要
Abstract
The accurate prediction of high frequency vibration response of complex structures is of great significance. Based on the energy finite element method (EFEM), the linear triangular elements were used since they were suitable for complex solution domain. Then, the energy density of the bending wave in thin plates was deduced and verified through the statistical energy method. A kind of implicit mesh generation methods was used to extend the EFEM to two-dimensional hollow structures. At the same time, the energy density and energy flow under the unit power excitation of a simple open-hole rectangular thin plate were studied. It was found that the energy density of the thin plate increases with the increasing of the hole size. The research is of significance to solve vibration energy distribution for mid-and high-frequency vibration of complex structures.关键词
振动与波/中空薄板/能量有限元/能量密度Key words
vibration and wave/hollow thin plate/energy finite element analysis/energy density分类
数理科学引用本文复制引用
何理,陈天宁,陈琛..中空薄板能量密度求解[J].噪声与振动控制,2018,38(z1):71-74,4.基金项目
武器装备预研基金资助项目(9140A10040209JW08) （9140A10040209JW08）
