摘要
本文通过耐压液舱结构整体求解得到的不同加强形式液舱壳板屈曲前的初始膜力，代入由李茨法导出的液舱壳板稳定性方程，求得不同加强形式液舱壳板失稳理论临界压力，经修正后可得相应的液舱壳板失稳实际临界压力。
In this paper an approach is put forward to predict both the theoretical and real critical pressures on the variously stiffened external shell of pressure tank structure with solid floor. The theoretical critical pressure can he obtained by solving the stability equations based on the Ritz method, in which the membrane stresses are given by analysing the whole structure of pressure tank under external hydrostatic pressure before buckling. This critical pressure value will be corrected properly, and then, be used for predicting the real crihcal pressure of shell stability.
出处
《船舶力学》
EI
1999年第4期54-60,共7页
Journal of Ship Mechanics
关键词
屈曲临界压力
耐压液舱
稳定性
船舶
buckling, critical pressure, pressure tank structure, stability equation, intermediate frame,longitudinal frame
