High Speed Aircraft Reliability Analysis

Text here...

Traditional Analysis
	Compared are the controlling failure modes between the traditional zero-margin approach vs. a 99.5% reliability analysis using the same design. Traditional design on top, reliability on bottom.
99.5% (1 in 1000) Reliability Analysis
Effects of varying reliability on controlling optimum layup
	Effect of varying reliability on controlling optimum layup. As the specified reliability increases, the best suited layup varies as indicated by the change in color pattern. Certain layups for a given load of a vehicle location are more efficient and selected by HyperSizer as optimum. However some of those layups may be less confidently used because of their measured variability in strength and as a result not optimum at higher reliabilities.
Effects of varying reliability on controlling optimum layup
Reliabilty Analysis........
Name ?

Structural Weight vs. Lifetime Failures
An example airframe structural weight vs. lifetime failures. Note that significant reliability can be achieved with moderate weight growth. Note also that the traditional zero-margin analysis (blue diamond) currently practiced in aerospace provides neither acceptable structural integrity nor minimum weight. This data is normalized to the traditional analysis.

Analyses Probability Density Functions (PDF)

How was this reliability analysis performed? Test Data and Reliabilty Analysis»