开孔球形耐压壳力学特性及疲劳分析  

Mechanical properties and fatigue analysis of spherical pressure shell with openings

作　　者：朱永梅[1] 马青丽 戴永健[1] 张建[1,2] 

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212003 [2]中国船舶科学研究中心,江苏无锡214082

出　　处：《舰船科学技术》2017年第3期7-11,共5页Ship Science and Technology

摘　　要：深入研究7000m水深下球形耐压壳的力学特性及疲劳寿命。首先,对完整球形耐压壳进行强度及稳定性分析;其次在完整球形耐压壳的基础上,根据潜水器设计规范对其进行开孔加强设计;最后对开孔加强球形耐压球壳进行强度与稳定性以及疲劳寿命分析,并同时与完整球形耐压壳进行对比。研究结果表明,开孔对球形耐压壳影响较大,与完整球形耐压壳相比,强度下降了9.4%,稳定性下降了19%,疲劳寿命下降了32.4%。研究成果可为深海球形耐压壳开孔开窗设计提供参考。In this paper, the mechanical properties and fatigue life of spherical pressure shell under 7000m depth are studied. Firstly, the strength and stability of the spherical pressure shell are analyzed. Secondly, based on the full spherical pressure shell, the openings is designed and strengthened according to the specification of the submersible design.Finally, the strength and stability and the fatigue life of the spherical shell with openings with renforment are analyzed. Calculation res- ults show that the pressure spherical shell with opening with coaming reinforement compared with the spherical shell with no opening, the strength decreases by 9.4%, the stability decreases by 19% and the service life was reduced by 32.4%. The research results can provide reference for the design of deep sea spherical pressure shell with openings.

关 键 词：球形耐压壳 开孔 强度 稳定性 疲劳寿命 

分 类 号：U661.4[交通运输工程—船舶及航道工程]