钢制内压容器可靠性安全系数的研究  

Research on reliability safety factor of steel internal pressure vessel

作　　者：刘小宁[1,2] 张红卫[1] 刘岑[2] 刘兵[1] 袁小会[1] 韩春鸣[1] 

机构地区：[1]武汉软件工程职业学院机械制造工程系,湖北武汉430205 [2]武汉工程大学机电工程学院,湖北武汉430074

出　　处：《武汉工程大学学报》2011年第5期106-110,共5页Journal of Wuhan Institute of Technology

基　　金：湖北省教育厅科研项目(B20087301);武汉市创新人才开发资金重大创新专项资助

摘　　要：应用应力-强度干涉模型,分析按中国标准设计的三种结构钢制内压容器初始屈服与爆破强度在压力试验和正常操作时的可靠度系数范围,建立了安全系数、试验压力系数与许用可靠度系数之间的定量关系.基于屈服、爆破和断裂等三种失效准则,从等可靠度观点,确定了四种结构容器在压力试验和正常操作时的许用可靠度,得到基于许用可靠度的安全系数与试验压力系数.By means of application of stress-intensity interference model,the allowable reliability coefficients range of initial yield and burst intensity were analyzed during the pressure test and the normal operation in which Three kinds of steel internal pressure vessel structures are desinged according to the Chinese standard.The quota relations are established among the safety factor,the test pressure coefficient and the allowable reliability coefficients.Based on three kinds of the failure criterion such as yield,burst and fracture,from equal-reliability viewpoints,the allowable reliability coefficient of four kinds of vessel structure intensity during the pressure test and the normal operation are determined.The safety factor and the test pressure coefficient are obtained based on the allowable reliability.

关 键 词：内压容器 许用可靠度 可靠性安全系数 试验压力系数 

分 类 号：TH49[机械工程—机械制造及自动化]