【摘要】 文章以非线性有限元知识为基础,对非线性有限元迭代方法简化,对不同荷载工况下结构的膜面应力和顶点最大位移等基本结构变化特性进行分析,得出模型的荷载-变形关系;并与ANSYS分析软件的分析结果进行比较,二者结果较为接近,证明了该文充气膜结构的简化有限元迭代方法正确性与可靠性。更多还原

【Abstract】 In light of the geometrical large deformation and small strain of the air-supported structure and on the basis of the non-linear finite element iteration method,different loading conditions including snow load and wind load are simplified,the membrane stress and the largest displacement of the chosen membrane with certain interior pressure are analyzed,and the load-deformation relations of the structure are obtained.The relevant calculation formulas are also given.The results of analysis by using the ANSYS software with the triangle finite element are compared with those by using the simplified calculation method,which turns out to be very close.It is thought that the presented simplification method based on the non-linear finite element iteration method is right and feasible.更多还原