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Reliability Design Prediction Studies With Reference to Jet Propulsion
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English
Abstract
The reliability design review as a highly disciplined, organized approach to failure mode/failure consequence studies is reappraised in light of jet engine design and development experience. Reliability design prediction techniques based on two approaches are described.
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1.
The failure rate estimate for controls and accessory parts based on historical data with similar devices under similar conditions or modified from the reference value by suitable modifier.
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2.
The stress-strength probability density interference approach for engine structural parts.
Limitations of the approaches are highlighted; the benefits are discussed as these techniques assist the design engineer toward achieving higher levels of reliability earlier in programs.