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威布尔分布参数估计在Excel中的实现方法研究
发表时间:2009-03-31 浏览量:3961 下载量:1485
全部作者: | 史景钊,花恒明,李祥付 |
作者单位: | 河南农业大学机电工程学院 |
摘 要: | 三参数威布尔分布的参数估计比较复杂,大多数估计方法都需要编程计算。推导了相关系数优化法求解三参数威布尔分布位置参数的公式,并利用Ms Excel强大的规划求解功能对该公式进行求解,实现了位置参数估计的非编程求解,同时利用图表功能实现了形状参数和尺度参数的非编程求解。实例证明该法方便、快捷,可以满足估计精度。 |
关 键 词: | 机械设计;可靠性;威布尔分布;参数估什;Excel |
Title: | Study on implementation method of Weibull distribution parameter estimation in Excel |
Author: | SHI Jingzhao, HUA Hengming, LI Xiangfu |
Organization: | College of Mechanical and Electrical Engineering, Henan Agricultural University |
Abstract: | The parameter estimation of 3-parameter Weibull distribution is very complicated, and most estimation methods need programming calculation. This paper derives the formula of solving the location parameter of 3-parameter Weibull distribution by relative coefficient optimization method and uses the powerful programming solver of Ms Excel to solve the formula, thus it realizes the non-programming solution of location parameter estimation. Meanwhile, it achieves the non-programming solution of shape parameter and scale parameter by using the chart features. Examples prove that the method is easily accessible and efficient, and can meet the estimation precision. |
Key words: | mechanical design; reliability; Weibull distribution; parameter estimation; Excel |
发表期数: | 2009年3月第6期 |
引用格式: | 史景钊,花恒明,李祥付. 威布尔分布参数估计在Excel中的实现方法研究[J]. 中国科技论文在线精品论文,2009,2(6):579-584. |
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