...) ( ) ( ) e e e e u u x x u x u x u u x l l l − = + = − + = ⋅ N q (3-31) 其中 叫做形状函数矩阵(shape function matrix)，为 N 29 有限元分析基础教程 曾攀 ( ) (1 ) e e x x x l l ⎡ ⎤ = − ⎢ ⎥ ⎣ ⎦ N (3-32) e q 叫做节点位移列阵(nodal disp...
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The triangle base function was selected as shape function, and cell equation and cell matrix were constructed.
选定平面三角形基函数作为型函数，确定了单元方程和单元矩阵；
In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
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