【摘要】 基于等效夹层壳思想的双层网格扁壳非线性弯曲理论,对鞍形双层双曲抛物面网格壳体在均布压力作用下的非线性稳定性问题进行了研究,采用伽辽金方法求得了简支边界条件下双层双曲抛物面网格壳的非线性载荷-位移关系式和临界屈曲载荷的解析表达式,同时讨论了网壳结构几何参数对临界屈曲载荷的影响.更多还原

【Abstract】 Based on the nonlinear bending theory of double-deck reticulated shallow shells,the nonlinear buckling problem of hyperbolic parabolic double-deck reticulated shallow shells under uniform transverse pressure is studied.An analytic solution for movable clamped edges is obtained by use of Galerkin’s method.The results of numerical calculations are presented in diagrams,which show the influence of geometrical parameters on the buckling behavior.更多还原