薄板单元新的质量矩阵及其应用

The New Mass Matrixes of Thin Plate of Element With Applications

为了使TRUNC元能用来分析薄板动力问题 ,用作者所提出的新列式方法推导出该单元的两种质量矩阵。文中算例的计算结果表明 ,用TRUNC元和这两种新的质量矩阵分析薄板动力问题 ,也具有高的精度和计算效率。

In order to apply the element to the analysis of dynamic problems of thin plate,the mass matrixes of TRUNC element are deduced with a new formulation met hod and are applied to analyze the dynamic problems of thin plate.The numerical results exhibit that two new mass matrixes have higher accuracy and computation al efficiency.