系统可靠性评定中的近似正态

基于数理统计理论中的中心极限定理，提出了一种适用于系统可靠性评定的近似正态法。该方法是通过将子系统或部件试验数据进行有效的分析处理，使之近似地服从正态分布规律，从而由标准正态分布给出在不同置信度条件下的系统可靠性下限。计算方法简单，具有工程应用价值

A Similar Normal State Method for Reliability Evaluation of System

A similar normal state method of system reliability evaluation is presented based on the centre limit theorem of mathematical statistical theory. The method can make the subsystems approximately obey the normal state distribution through the treatment of the test data of the subsystems, then give the reliability low limit of the system on the condition of different confidence levels. The method is simple but valu able to engineering application.