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Complex electromechanical systems considering performance degradation are multi-state systems which cannot be described by traditional reliability theories based on the binary states assumption. Generally, such systems contain both electronic and mechanical components that have different failure mechanism and characteristics. In addition, states of the system and its components are time-variant, which...
Time-variant is the typical characteristic of components and systems and the classical approach for time-variant reliability analysis relies on the computation of up-crossing rates. In order to get the up-crossing rate, the common up-crossing approach uses a FORM method to compute the instantaneous reliability index at each time. FORM method likely lead to decrease of the result's accuracy when the...
Assessing efficiently the lifetime of aging mechanical components structures needs taking into account the random and temporal character of material properties, environmental conditions and loads. Time-variant reliability methods are a way to deal with this source of concern. Combined with the theory of reliability design and the method durability, computation method of time-dependent reliability...
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