Time-dependent reliability problems widely appear in the engineering practice when the material properties of the structure deteriorate in time or random loading modeled as random processes is involved. Among existing methods to the time-dependent reliability problems, the most dominating one is the outcrossing rate method. This paper presents an outcrossing rate model and its efficient calculation approach for system problems, and based on the presented model, a time-dependent system reliability analysis method is proposed. The main idea of the method is to transform the evaluation of the system outcrossing rates into the calculation of a time-invariant system reliability. Three numerical examples are used to demonstrate the effectiveness of the proposed method.
An Outcrossing Rate Model and Its Efficient Calculation for Time-Dependent System Reliability Analysis
Contributed by the Design Automation Committee of ASME for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received April 2, 2016; final manuscript received December 15, 2016; published online February 20, 2017. Assoc. Editor: Nam H. Kim.
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Jiang, C., Wei, X. P., Huang, Z. L., and Liu, J. (February 20, 2017). "An Outcrossing Rate Model and Its Efficient Calculation for Time-Dependent System Reliability Analysis." ASME. J. Mech. Des. April 2017; 139(4): 041402. https://doi.org/10.1115/1.4035792
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