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本文在文献[1][2]的基础上构造了一种广义协调的任意四边形平板型壳元，在Total－Lagrange坐标下，推导了该单元在板壳结构几何非线性有限元分析中全部有限元列式。算例表明，该单元具有自由度少、精度高、收敛快、适应性强等优点，适用于一些复杂形状板壳结构的几何非线性有限元分析。
Based on the literature [1][2], this paper constructs a generalized coordinated arbitrary quad flat shell element. Under the Total-Lagrange coordinates, the element is deduced to be all finite in the geometric nonlinear finite element analysis of the shell and shell structure. Meta column type. The example shows that this unit has the advantages of less freedom, higher accuracy, faster convergence, and better adaptability. It is applicable to the geometric nonlinear finite element analysis of some complex shape plate shell structures.