| 最大标准差和最大变异系数方法 |
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| 引用本文： | 傅惠民,高镇同.最大标准差和最大变异系数方法[J].北京航空航天大学学报,1991(4):51-55. |
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| 作者姓名： | 傅惠民 高镇同 |
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| 作者单位： | 北京航空航天大学飞行器设计与应用力学系
(傅惠民)，北京航空航天大学飞行器设计与应用力学系(高镇同) |
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| 摘 要： | 本文提出的最大标准差方法和最大变异系数方法,能充分利用以往数据和经验提供的信息,大大减少了试件个数。与国际上常用的单侧容限系数法相比,可节省大量试件;而在试件个数相同的情况下,则可得到更接近母体百分位值的置信下限(如安全寿命或安全疲劳极限等)。
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| 关 键 词： | 标准差 疲劳试验 变异系数 |
METHODS OF SUPREMUM OF POPULATION STANDARD DEVIATION AND VARIATION COEFFICIENT |
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| Fu Huimin Gao Zhentong.METHODS OF SUPREMUM OF POPULATION STANDARD DEVIATION AND VARIATION COEFFICIENT[J].Journal of Beijing University of Aeronautics and Astronautics,1991(4):51-55. |
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| Authors: | Fu Huimin Gao Zhentong |
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| Institution: | Dept. of Flight Vehicle Design and Applied Mech. |
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| Abstract: | It is easy to determine the supremum of the population standard deviation or coefficient of variation for the material to be tested, although to find the standard deviation or coefficient of variation is difficult by means of the information from data-base before the test beginning. On the basis of the fact, the methods of supremum of population standard deviation and coefficient of variation are presented for test design and statistical analysis of the result. The one-sided lower confidence limits of the population percentiles obtained by the methods are greater than those by the one-sided tolerance factor at a given confidence level.the number of specimens required fewer. |
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| Keywords: | supremum of standard deviation supremum of coefficient of variation population percentile one-sided lower confidence limit |
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