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Challenges in Reliability Prediction of Aircraft Subsystems

Challenges in Reliability Prediction of Aircraft Subsystems

Abstract
As the new generation Aircraft Subsystems has more features and design advancements compared to predecessor systems, it will be increasingly complex to perform the Reliability Prediction of subsystems and maintain the compliance towards safety requirements. This paper discusses the various challenges in performing Reliability Prediction of Aircraft Subsystems during the system design phase and provides option on revising the existing reliability equations and empirical formulae based on the past experience.

The Operational Reliability data obtained from previous generation Aircraft subsystems provide the first level results of reliability prediction. These results will help to identify the weak parts\elements and provide insight into the areas, which can be improved to enhance the inherent reliability of new generation system. This paper also explores the relationship between Aircraft subsystems reliability and individual component reliability estimates. The sensitivity and redundancy studies are performed to analyze the system-level impact of component-level reliability data. Finally, this paper presents useful information to assess subsystem reliability improvement strategies

Excerpts from the Paper
The new generation Aircraft Subsystems will be designed and developed using concurrent engineering processes to reduce the aircraft development cycle time and accelerate the time– to–market initiatives. In order to assess the Operational and Safety performance of the aircraft, it is imperative to predict the reliability at the early stages of product development process so that customer requirements can be taken care in the product design. A new generation system will likely have some subsystems and components that have been used previously so that there lot of reliability prediction data that can be reused.

 

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