摘要
提出了对数正态分布环境因子的两种定义.据此定义,用经典方法和贝叶斯方法推证了环境因子的上、下限及点估计,并讨论了环境因子各估计量的性态,数值例说明了各定义及估计公式的适用性,最后指出了在正态分布环境因子估计中的应用。
Two definitions of environmental factors for the log normal distribution are proposed. According to the two definitions the point estimate and 100(1-γ)% upper and lower limits of environmental factors are derived by classical and Bayesian methods, whose performance are discussed. Practical examples show that the derived formulae are satisfactory.
出处
《北京理工大学学报》
EI
CAS
CSCD
1992年第2期1-8,共8页
Transactions of Beijing Institute of Technology
关键词
环境因子
对数正态分布
可靠性评定
environmental factors
log normal distribution
reliability assessment
confidence limits/Bayesian method
