Analytical method is developed for estimating variability in performance of device that arises from variability of its internal parameters; mathematical model of device is formulated to define relationships between parameters and various performance characteristics; computer calculated partial derivatives of performance characteristics are used in evaluating Propagation of Variance formula; approach, called Moment Method, makes use of mean and variance, first two moments of parameter value frequency distributions; application of method to variability analysis of 2-stage electrohydraulic servo valve is shown.
Variability analysis of precision mechanical devices
SAE -- Proc
3rd SAE Aerospace Reliability and Maintainability Conference ; 1964
Society of Automotive Engineers -- Proceedings ; p 576-588
1964
13 pages
Conference paper
English
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Variability Analysis of Precision Mechanical Devices
SAE Technical Papers | 1964
|Online Contents | 1994