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The Use of PHM for a Dynamic Reliability Assessment

Heier, Henrik and Mehringskötter, Simon and Preusche, Christian (2018):
The Use of PHM for a Dynamic Reliability Assessment.
In: 2018 IEEE Aerospace Conference, In: 2018 IEEE Aerospace Conference, Yellowstone Conference Center, Big Sky, Montana, 03.03.2018 - 10.03.2018, [Conference or Workshop Item]

Abstract

The reliability of critical aircraft systems such as braking, actuation or cooling systems has a direct influence on the overall aircraft safety and availability. Thus, an unforeseen failure of such systems can have a huge financial impact due to unscheduled downtimes or even worse, can lead to a safety critical situation. A precise knowledge of these system’s future reliability is therefore of great importance for any aircraft operator. The prevalent tools and processes used to conduct safety and reliability assessments have matured over the last decades. Nevertheless, they still form a rather static process, neglecting the true health state of an individual system. In this paper, it is proposed to utilize PHM methods to develop a dynamic reliability assessment method, which will assess the reliability of a given system at runtime (e.g. during flight), by monitoring and predicting the health status of safety critical components. It will be shown that this novel method provides several advantages compared to the classical reliability assessment process.

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Heier, Henrik and Mehringskötter, Simon and Preusche, Christian
Title: The Use of PHM for a Dynamic Reliability Assessment
Language: English
Abstract:

The reliability of critical aircraft systems such as braking, actuation or cooling systems has a direct influence on the overall aircraft safety and availability. Thus, an unforeseen failure of such systems can have a huge financial impact due to unscheduled downtimes or even worse, can lead to a safety critical situation. A precise knowledge of these system’s future reliability is therefore of great importance for any aircraft operator. The prevalent tools and processes used to conduct safety and reliability assessments have matured over the last decades. Nevertheless, they still form a rather static process, neglecting the true health state of an individual system. In this paper, it is proposed to utilize PHM methods to develop a dynamic reliability assessment method, which will assess the reliability of a given system at runtime (e.g. during flight), by monitoring and predicting the health status of safety critical components. It will be shown that this novel method provides several advantages compared to the classical reliability assessment process.

Title of Book: 2018 IEEE Aerospace Conference
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Flight Systems and Automatic Control (FSR)
Event Title: 2018 IEEE Aerospace Conference
Event Location: Yellowstone Conference Center, Big Sky, Montana
Event Dates: 03.03.2018 - 10.03.2018
Date Deposited: 16 Apr 2018 08:34
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