The effect of initial geometrical imperfections on the stability of sheet space structure is a key to its design and calculation.Advanced stochastic imperfections method is put forward,which does not require a large amount of manual computations and by which the reliability of design critical load and critical load with consistent mode imperfections method can be evaluated.The results of perfect model,consistent mode imperfections method,advanced stochastic imperfections method and experiment are compared,by which some conclusions that are useful for engineering design and study of space sheet structure are obtained.
Zhao H L,et al.Experimental Study,Theoretical Analysis and Design of a Sheet-Framed Space Structure.In:Proc.of Third Int.Conf.on Space Structure.U.K:1984.219~224