多层圆柱壳间隙预估研究  

The Forecast of Multilayer Cylindrical Shell Gap

作　　者：吴越[1] 幸奠明[1] 

机构地区：[1]中国工程物理研究院总体工程研究所,四川绵阳621900

出　　处：《机械研究与应用》2015年第2期73-75,共3页Mechanical Research & Application

摘　　要：为了解由多层圆柱壳构成的装置轴向平面间隙随环境温度的变化,设计了PBX壳的热膨胀系数测定实验,结果表明,PBX壳各型面的热膨胀系数不同;推导了多层圆柱壳轴向平面间隙随环境温度的变化关系式并设计了验证实验,计算值与实测值的误差小于10%。To understand the change of axial plane clearance between the multilayer cylindrical shell along with the ambient temperature, experiments were designed to measure the thermal expansion coefficient of the PBX shell.The results show that the thermal expansion coefficient of each profile in PBX shell is different;and the equations of axial plane clearance of multi-layer cylindrical shell with the change of environmental temperature are derived and then verification experiments are carried out.The error between the calculated values and the measured values is less than 10%.

关 键 词：多层圆柱壳 热膨胀系数 轴向平面间隙 

分 类 号：TH131.3[机械工程—机械制造及自动化]