索膜结构找形分析的有限元法及Ansys实现  

Finite element method of form-finding analysis of cable-membrane structure and realization by Ansys

作　　者：王玥[1] 

机构地区：[1]辽宁工程技术大学土木建筑工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第z1期104-107,共4页Journal of Liaoning Technical University (Natural Science)

摘　　要：介绍了索膜结构找形分析的有限元法,针对索膜结构极强的几何非线性特点,提出了非线性有限元的基思想本、基本假设和索膜结构的找形原理。索膜结构找形可以通过提升初始状态的指定点到指定位置的方法进行,应用了小弹性模量理论,最后恢复真实的弹性模量,克服了目前普遍应用小弹性模量不能恢复弹性模量真实值的不足。并考虑到目前有限元通用程序的广泛使用,着重研究了这一方法在Ansys上的实现过程。This article introduces the nonlinear finite element method of form-finding analysis of cablemembrane structure .Contrapose geometry nonlinear of cable-membrane,basic thought and hypothesis of finite element and form-finding theory of cable-membrane are put forward.The form-finding of cable-membrane structure can be accomplished with the specific pedestals'up-lift to the specific place.In this process,the low elasticity modulus method is used,and the real elasticity modulus should be redefined to the material in the end.which can overcome the deficiency of the method used now.Thinking of wide use of the finite element software,the realization of this process with Ansys is discussed.

关 键 词：索膜结构 找形分析 有限元 ANSYS 

分 类 号：TU393.3[建筑科学—结构工程]