摘要
根据离散后膜曲面的节点平衡条件,推导了气承式薄膜结构初始平衡形状确定的基本方程.在此基础上,提出了气承式薄膜结构等应力密度及等应力两类初始平衡曲面的求解方法.依据文中方法编制了计算程序,给出了两个找形算例.算例验证了理论推导和程序的正确性,同时表明,对于气承式薄膜结构的找形分析,文中提出的求解方法简单、高效.
The basic equations for formfinding of airsupported membrane structures are derived from the nodal equilibrium condition of discrete membrane surface.On this basis,the solution methods for the two kinds of initial equilibrium membrane surfaces with equal stress density or equal stress are proposed.Calculation program is realized according to the suggested methods and two form finding examples are illustrated.The examples demonstrate that in this paper the theory and program are correct and the solution methods are simple and efficient for the formfinding of airsupported membranes.
出处
《武汉化工学院学报》
2004年第4期49-51,共3页
Journal of Wuhan Institute of Chemical Technology
关键词
气承式薄膜结构
张拉式薄膜结构
应力密度
找形
airsupported membranes
tensile membranes
stress density
formfinding (shapefinding)
