用曲面有限单元建立的膜结构分析理论

Analysis Theory of Membrane Structure by Curved Surface Finite Element Method

本文首次采用曲面膜单元分析膜结构，在非线性有限元理论基础上详细推导了全部公式。对新出现的问题和已往平面膜单元分析理论中各主要技术环节给出了新的解决办法和改进措施。

In this paper,the curved surface membrane element is used to analyze the membrane structures for the first time. All the essential formulas have been derived on the basis of nonlinear finite element theory. New methods and procedures are given for solving the new problems and the old ones arisen in the plane membrane element theory as well.