超高压容器爆破压力的概率分布  

Probability Distribution of Super- High Pressure Vessel Burst Pressure

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

机构地区：[1]武汉软件工程职业学院机械工程学院,武汉430205 [2]武汉工程大学机电工程学院,武汉430205

出　　处：《工业安全与环保》2014年第9期71-73,共3页Industrial Safety and Environmental Protection

基　　金：湖北省教育厅科研项目(B2014209);武汉市创新人才开发资金重大创新专项资助项目

摘　　要：应用数理统计方法,对超高压容器的爆破压力进行分析,得到两个结论:1描述爆破压力实测值与理论值之比的随机变量基本符合正态分布;2在双侧置信度为98%时,该随机变量分布参数范围为:均值应不小于0.984 50且不大于1.070 3,标准差应不小于0.071 82且不大于0.133 95,变异系数应不小于0.06710且不大于0.136 06。By using the method of statistics,the burst pressure for the super- high pressure vessel is analyzed. The results shows that： 1the random variable describes the ratio of the measured value to the theoretical value for bursting pressure accords with normal distribution; 2with 98% of the bilateral confidence limit,the distribution parameters range of the random variable follows： the average value should be not less than 0. 984 50 and not greater than 1. 0703,standard deviation not less than 0. 071 82 and not greater than 0. 133 95,and variation coefficient not less than 0. 067 10 and not greater than 0. 136 06.

关 键 词：超高压容器 爆破压力 随机变量 分布规律 分布参数 

分 类 号：TH49[机械工程—机械制造及自动化]