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张力膜结构是膜结构中的一类,它体现了现今结构选型的趋势———杂交体系,具有很好的发展前景。张力膜结构形状的确定,是结构分析的前提;是决定工程造价的重要因素。本文在张力膜结构有限元分析的基础上,建立了张力膜结构形状优化模型;介绍了其几何模型,结构分析方法及采用的无需梯度的复形法;提出了张力膜结构形状优化的求解基本步骤。最后给出了一张力膜结构形状优化实例分析。
Tensile membrane structure is a type of membrane structure, which reflects the trend of the current structure selection - hybridization system, has a good development prospects. The determination of the tension membrane structure shape is the premise of structural analysis; it is an important factor in determining the engineering cost. In this paper, based on the finite element analysis of tensile membrane structure, the shape optimization model of tension membrane structure is established; the geometric model, structural analysis method and the complex method without gradients are introduced; the solution of shape optimization of tensile membrane structure is proposed. step. Finally, an example analysis of the shape optimization of tensioned film structure is given.