等极孔气瓶的扩孔缠绕工艺

Poles Expansion Winding for Equal-Poles Pressure Vessels

本文通过纤维缠绕基础理论公式和数值模拟仿真方法,研究纱宽直径比k_(1)、极孔直径比k_(2)对于螺旋缠绕角度α的影响变化规律,研究摩擦系数f、稳定偏差角△α对于非测地线螺旋缠绕角度α′的影响变化规律,使得工程师可以根据摩擦系数f快速计算出稳定偏差角△α。基于等极气瓶稳定偏差角的适用范围,给出扩孔缠绕工艺选择路线,即全测地线扩孔缠绕、非测地线扩孔缠绕、等角扩孔缠绕工艺。根据渐次扩孔直径计算出螺旋缠绕角,进行全测地线扩孔缠绕工艺的缠绕轨迹设计;根据渐次扩孔直径与最大摩擦系数计算出非测地线螺旋缠绕角,进行非测地线扩孔缠绕的缠绕轨迹设计;根据渐次扩孔直径对应螺旋扩孔缠绕角与螺旋切根缠绕角计算出稳定偏差角和摩擦系数,经过调整摩擦系数方法进行等角扩孔缠绕工艺的缠绕轨迹设计。

This article uses the basic theoretical formulas and numerical simulation methods of filament winding process,to study the influence of the fiber-width/diameter ratio and the pole/diameter ratio on the helical winding angle,to study the influence of the friction coefficient and the stable deviation angle on the non-geodesic helical winding angle.This enables engineers to quickly calculate the stable deviation angle based on the friction coefficient.Based on the applicable range of stable deviation angle for equal poles pressure vessels,provide route selection for the poles expansion winding.They are full geodesic poles-expansion winding,non-geodesic poles-expansion winding,and equal-angle poles-expansion winding.The helical(geodesic)winding angle calculate based on the gradual expansion diameter,design the winding paths for full geodesic poles-expansion winding.The non-geodesic helical winding angle calculate based on the gradual expansion diameter and maximum friction coefficient,design the winding paths for non-geodesic poles-expansion winding.Calculate the stable deviation angle based on the helical winding angle corresponding to the gradually expansion diameter and the poles helical winding angle,and then calculate the friction coefficient,design the winding paths of the equal-angle poles-expansion winding by adjusting the friction coefficient method.