DTIC ADA144860: On the Distribution of Cycles pdf

DTIC ADA144860: On the Distribution of Cycles

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Description of the Book:

This report is a supplement to our previous report on the distribution of the number of cycles to crack initiation in aircraft engine disks. The data analyzed in the previous report are reconsidered here using a new approach. Thus, some degree of familiarity with the first report is assumed. We first present a nonparametric approach for estimating the survival (reliability) function. This technique is applied to the actual data, and comparisons are made with the survival curves that are obtained assuming the lognormal, the Weibull, and the inverse Gaussian distributions. An alternative informal goodness of fit test for the inverse Gaussian distribution is also considered. Our conclusion is that estimated survival curves using the lognormal, the Weibull, and the inverse Gaussian distributions behave similarly, whereas the survival curve based on a nonparametric approach is more conservative as compared to the other curves

• Creator/s: Defense Technical Information Center
• Date: 4/8/1983
• Year: 1983
• Book Topics/Themes: DTIC Archive, Soyer, R, GEORGE WASHINGTON UNIV WASHINGTON DC INST FOR RELIABILITY AND RISK ANALYSIS, *CRACKING(FRACTURING), *DISTRIBUTION THEORY, WEIBULL DENSITY FUNCTIONS, AIRCRAFT ENGINES, ESTIMATES, NONPARAMETRIC STATISTICS, RELIABILITY, DISKS, CYCLIC RATE

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