纤维缠绕壳体的应力平衡系数和圆筒缠绕角

讨论了纤维缠绕壳体应力平衡系数的定义.在封头与圆筒等强的条件下,给出了应力平衡系数的确定方法.得到了应力平衡系数k_s与圆筒缠绕角α的关系式.结果表明,应力平衡系数随圆筒缠绕角的减小而减小.只要k_s<1,则应力平衡系数的引入,将增加圆筒的质量.为此,适当增大圆筒缠绕角,既能使封头得以加强,又能减小圆筒质量的增加.

Stress equilibrium factor and the cylinder wound angle of the filament-wound case

The definition of stress equilibrium factor for the filament-wound case is discussed. A method determining the stress equilibrium factor is given when the closure and the cylinder strength are equal. The relationship of the stress equilibrium factor k_s and the cylinder wound angle α Is obtained. The results show that the stress equilibrium factor will be decreased when the cylinder wound angle is decreased. The mass of the cylinder is increased as long as stress equilibrium factor k_s＜1. Therefore, the appropriate increase of the cylinder wound angle will strengthen the closure and reduce the mass increment of the cylinder.