Journal Article10.1007/S12206-009-0719-3
Non-sample based parameters design for system performance reliability improvement
TL;DR: In this paper, the authors proposed a non-sample method for quality over time (performance reliability), which minimizes effects of unavoidable component degradations as well as component variations on system performance change.
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Abstract: Design methods for quality generally help to improve quality over time, but do not consider change of system performance over time, resulting from degradation in components. As design methods for quality over time (performance reliability), which minimizes effects of unavoidable component degradations as well as component variations on system performance change, system model-based sampling methods using Monte-Carlo simulations have been used. But, there are main concerns related to computational efficiency and optimization in applying the sampling methods. To overcome the concerns, we propose a non-sample method for quality over time. Based on the proposed method, the process of allocating design parameters, which could minimize the noise effects with the consequence that both quality and performance reliability are optimized, is discussed. Reliability metrics such as mean time to failure and standard deviation of time to failure are optimized simultaneously for reliability improvement. Desirability functions for the metrics are introduced to perform the simultaneous optimization. The proposed method is applied to an electrical system design and compared to a sampling based design method.
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Citations
Reliability prediction of engineering systems with competing failure modes due to component degradation
TL;DR: In this paper, the reliability of an engineering system depends on two reliability metrics: the mechanical reliability, considering component failures, that a functional system topology is maintained and the performance reliability of adequate system performance in each functional configuration.
Meta-model-based Design Method for Frequency-domain Performance Reliability Improvement
TL;DR: In this paper, a design method for improving the frequency-domain performance reliability of dynamic systems with uncertain and degrading components is proposed, and a meta-model for the frequency responses, an extreme-value event, and the set-theory are integrated to improve the computational efficiency of the reliability estimation.
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