摘要
运用线性相关系数优化法对三参数对数正态分布的参数Ｎ０，μ和σ给出了相应计算方法．疲劳性能测试数据在ｐ－ｌｇ（Ｎ－Ｎ０）坐标系中最大限度地呈现线性关系．实例表明直线拟合效果良好．
The optimizing method of linear correlation coefficient is used for parameters N0,μand a of logarithmic normal distribution and a relative computation method is given. In the testdata of faitigue property is maximally emerged the linear relation in p-lg (N-N0) coordinatesystem. Practical examples show the fitting effect of straight lines is good.
出处
《武汉水利电力大学学报》
EI
CSCD
1995年第4期425-428,共4页
Engineering Journal of Wuhan University
关键词
对数正态分布
相关系数
金属材料
疲劳性能
logarithmic normal distribution
correlation coefficient
parameter estimation
