自增强外压球壳应力强度计算与分析  

Stress Calculation and Analysis of External Pressure Spherical Shell Based on Self-reinforced Technology

作　　者：曲文新[1] 古浪 马利斌[1] 

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶工程》2015年第10期98-101,共4页Ship Engineering

摘　　要：基于弹塑性变形理论,对厚壁外压球壳弹塑性变形进行了分析,研究结果为自增强技术在外压球壳上的应用提供了计算方法与数值依据。利用Abaqus对7000m载人潜器上一单开孔球壳进行了自增强模拟计算,计算结果表明,自增强处理后球壳上及穿舱件盘处结构应力下降明显,结构应力分布趋于均匀统一,有助于提高球壳体疲劳寿命。Based on the elastic-plastic deformation theory, the paper gets the analysis of thick spherical shell＇s elastic-plastic deformation. The research result provides a calculation method and numerical evidence which can be used on self-reinforced external pressure sphere. By using Abaqus, a calculation of a spherical shell on 7000 m manned submersible with one hole is carried out. The result shows that the structure stress on the area of spherical shell and penetrating piece disc have a significantly decrease after self-reinforced. Also the structure stress becomes more even and unified. It may contribute for improving the fatigue life of the spherical shell.

关 键 词：弹塑性变形 厚壁球壳 自增强技术 

分 类 号：U661.43[交通运输工程—船舶及航道工程]