二维单侧容限系数方法

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1993, Vol. 14 ›› Issue (3): 166-172.

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A METHOD OF TWO-DIMENSIONAL ONE-SIDED TOLERANCE FACTORS

Fu Hui-min

Institute of Solid Mechanics, Beij ing University of Aeronautics and Astronautics, Beij ing, 100083

Received:1992-11-10 Revised:1992-12-25 Online:1993-03-25 Published:1993-03-25

Abstract

Abstract: A formula of two-dimensional one-sided tolerance factors is given in this paper. And a method of obtaining sample means and sample variances with high degrees of freedom is presented to make full use of previous data and reduce the number of specimens. Thus, the confidence limit of population percentile obtained by the two-dimensional one-sided tolerance factor is closer to the population percentile than that by the (one-dimensional) one-sided tolerance factor at a given confidence level, the number of specimens requires fewer. Besides, a formula for one-sided lower confidence limits of reliability is also given in this paper.

Key words: dence limit one-sided tolerance factor, reliability, population percentile, one0sided confi-limit

Fu Hui-min. A METHOD OF TWO-DIMENSIONAL ONE-SIDED TOLERANCE FACTORS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1993, 14(3): 166-172.

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A METHOD OF TWO-DIMENSIONAL ONE-SIDED TOLERANCE FACTORS

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