The Research On Form-fiding Analysis And Whole Mechanics Performance Of Memberane Structrue

The membrane structcures is the vital structure form of The Tensegrity Systems It is different from traditional structures in the design and analysis -structcure stiffness depend on the preliminary prestress.In this paper, author mainly carry out two researchs: elementary form finding and whole mechanics performance, And gained some elementary characteristic of membrane structcures through the research.This paper expatiated the basic principle of nonlinear finite element of Membrane Structcures , inferred the balance equation of no-linear according to U.L formula , discussed the methods and the convergence rule about solving no-linear equations. Then passing through Pedestal Displacement method this paper carried out Form-finding of Membrane Structcures in virtue of General finite element programme ANSYS. In this way,we raveled out the crucial step of the analysis of Membrane Structcures.The result of analysis in this paper indicated the way which be used is dependable and accurate.For the two basal configurations: saddle and umbrella-shaped structcures, this paper carried out parameterized study,such as High-span ratio Pretension-ratio bettween Cable and Membrane Ridge cable and so on. We educed some constructive conclusion and suggestion about the two basal configurations through the observation to the influence of these parameters.This paper comprehensive depicted analytical method of whole mechanics performance of Membrane Structcures,and that,author carried out geometrical nonlinear analysis make use of General finite element programme ANSYS,this paper mostly carried out parameterized loading-study for two configurations: double arch saddle and umbrella-shaped structcures. By reason of umbrella-shaped structcure mostly apply in practice,this paper carried through particular study to this structcure in some aspects- High-span ratio Span Different load format ect We confirmed structural response of mechanical characters basing on parameters and opened out some essential mechanical characters of Membrane Structcures.