摘要
文章研究了在载人深潜器结构中承受高压、保障潜员安全的耐压球壳。文中通过对经典理论公式的分析和合理假设,引入几何修正系数k细化了球壳临界载荷计算表达式,该几何修正系数体现了球壳本身的初始形状,如初挠度、局部不圆度及板厚减薄等因素对其的影响。并通过回归分析得到计算数据与试验值吻合较好。同时,运用该公式对钛合金球壳临界载荷进行预报,同样有较高精度。
The spherical pressure shell main structure of manned submersible which is under great pressure and provides the security of human is researched. A new formula for calculating critical load of the spherical shell which bases on classic theory and considers the correction coefficient k is introduced. The influences of initial shape are shown, for example, initial deflections and out-of-roundness and thickness thinning in the manufactory technical, etc. The calculated data agree well with the experimental data by the regression analysis. The critical load of titanium spherical shell predicted by this formula is very precisely.
出处
《船舶力学》
EI
CSCD
北大核心
2014年第5期557-564,共8页
Journal of Ship Mechanics
关键词
耐压球壳
临界载荷
载人潜水器
初挠度
spherical pressure shell
critical load
manned submersible
initial deflections
