大尺寸球冠形观察窗的结构强度研究  

Study on Structural Strength of Large-size Spherical Sector Window

作　　者：高成君[1,2] 姜磊 刘帅[1,2] 叶聪 姜旭胤[1,2] GAO Chengjun;JIANG Lei;LIU Shuai;YE Cong;JIANG Xuyin(China Ship Scientific Research Center,Wuxi 214082,China;Tai Hu Laboratory of Deepsea Technological Science,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]深海技术科学太湖实验室,无锡214082

出　　处：《中国造船》2022年第6期152-160,共9页Shipbuilding of China

基　　金：国家重点研发计划资助项目(2021YFC2800600)。

摘　　要：针对载人潜水器球冠形观察窗的研制需求,对采用平板有机玻璃制作的球冠形观察窗全尺寸样机在压力筒内进行强度试验,并实时监控应变;采用接触有限元数值方法分析了不同压力下球冠形观察窗的经向和纬向应变,并与试验结果进行对比分析;基于应变分析结果,研究接触面摩擦系数和锥面下边缘倒角对球冠形观察窗位移和最大等效应力的影响。结果显示,减小接触面摩擦系数以及锥面下缘无倒角可有效减小观察窗的最大等效应力。本研究可为采用平板有机玻璃制作的球冠形观察窗的结构设计和安装提供参考。With the requirement of manned submersible, a full-scale prototype of a spherical sector window, made of domestic industrial flat plexiglass, is tested in a pressure tank, and the real-time strain is monitored. Radial and circumferential strains of the observation window under different pressure are analyzed with contact finite element method, which is compared with experimental results. Influence of friction coefficient and the chamfer of the lower edge of the cone on the displacement and the maximum effective stress of the spherical sector window is studied. The results show that reduction of the friction coefficient of the contact surface and selection of the cone without chamfer at the lower edge can effectively reduce the maximum equivalent stress of the observation window, which provides a reference for the structural design and installation of the spherical crown observation window made of flat plexiglass.

关 键 词：球冠形观察窗 载人潜水器 强度 

分 类 号：U674.941[交通运输工程—船舶及航道工程]