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首次将加权残数法和有限元法结合起来 ,用以分析板架结构和加劲板结构 ,其做法是对整个结构选取试函数 ,利用变分原理导出以权系数表示的梁元或板元的广义刚度矩阵和广义荷载列阵 .此方法可大大减少数值分析的计算量 ,适合工程应用
For the first time, the weighted residual method and the finite element method are combined to analyze the structure of the shelf structure and the stiffener. The method is to select the trial function for the whole structure and derive the beam element or plate element with the weight coefficient by using the variational principle Generalized stiffness matrix and generalized load array.This method can greatly reduce the computational complexity of numerical analysis and is suitable for engineering applications