Analysis of residual winding tension and design of winding tension for hoop winding on flexible cylinder

To achieve better design of winding tension in hoop winding layer,residual tension distribution in hoop winding layer during winding process was studied,and analysis method of residual tension and design method of winding tension were presented.Considering deformations of internal cone,strain and stress in winding layer under external pressure were determined through analytical method on the basis of three dimensional isotropic constitutive relationship and thick-walled cylinder theory.Thus,the decrease of hoop winding tension was obtained by integrating for external layers,then integration equation and differential equation of residual winding tension distribution and winding tension distribution were built,and formula of residual winding tension caused by a specified winding tension was proposed.Compared with the present references,the model concerns the effect of the deformation of internal model in the analysis of residual tension and design of winding tension,which may lead to more practical result for analysis of hoop winding residual tension and design of winding tension in flexible cylinder cone.