水下仪器舱的底壳的强度设计与分析  

Strength Design and Analysis of Bottom Shell of Underwater Instrument

作　　者：王院生[1] 康红梅[1] 路桂英[1] 余安险 

机构地区：[1]中国地质大学(武汉)机电学院,武汉430074

出　　处：《机械设计与研究》2017年第5期115-118,共4页Machine Design And Research

基　　金：中国地质大学(武汉)中央院校基础科学研究特别基金资助项目号(2008077015)

摘　　要：本文介绍了外径220 mm,厚20 mm的水下仪器舱的缸底的强度计算,将缸底受力简化为弹性力学平面应力问题,计算了缸底在均布压力载荷下的内力。计算结果和模拟仿真表明:在无加强筋条件下,304钢材质的缸底最大工作水深1 561 m。若须工作水深3 000 m,缸底的厚度应增大到27.7 mm以上。并计算了缸底的弹性极限弯曲变形-轴向变形约0.11 mm,为仪器舱的工程设计提供了理论参考。In this paper, the strength of the bottom of the underwater instrument chamber with outer diameter of 220 mm and thickness of 20 mm is introduced. The stress of the bottom of the cylinder is regarded as the plane stress of the elastic force. The internal force of the cylinder bottom under the uniform pressure is calculated. The results of calculation and simulation show that under the condition of no reinforcement, the maximum working depth of 304 steel is 156 1 meters. If the working depth of 3 000 meters, the thickness of the bottom of the cylinder should be increased to 27.7 mm or more. The elastic deformation of the cylinder bottom is also calculated. The axial deformation is about 0. 11 mm, which provides a theoretical reference for the engineering design of the instrument compartment.

关 键 词：仪器舱 缸底强度 弹性变形 塑性极限 

分 类 号：TH122[机械工程—机械设计及理论]