潜艇耐压液舱结构稳定性的初步研究

用有限元法分析研究潜艇耐压液舱结构的稳定性问题，通过实例分析，证实所采用的应用软件是可靠的，并指出了该区结构不存在总稳定问题，保证应力强度的耐压船体壳板，密加纵骨的耐压液舱壳板及密设加强筋的实肋板局部稳定性都是有保护的。由此可见，耐压液舱结构稳定性不是矛盾的主要方面，结构的安全性主要受制于应力强度。这些结构对耐压液舱结构的设计有重要意义。

Preliminary Research on Structural Stability of Pressure Tank for Submarine

The structural stability of pressure tank for a submarine is analyzed using finite element method.The calculation results show that the proposed method is reliable as compared with the analytical method and that the overall stability of the structure in the region,the shell of pressure tank with close-spaced longitudinals and the solid floor with close-spaced ribbed stiffeners are all assurable.Therefore,the safety of the pressure tank sturcture mainly does not depend on the structural stability,but the strength due to the applied stress.