研究目的
Calculating reliability indexes of two-channel homogeneous and diversity systems using a stress-strength model to determine probabilities of common cause failures and other parameters.
研究成果
Formulas (12) and (17) provide the probability of failure for two-channel diversity systems, estimating common cause failures. Diversity systems have failure probabilities bounded by homogeneous systems, with diversity offering more linear characteristics but not always higher reliability if the additional channel is less reliable.
研究不足
The model assumes time-independent parameters unless dynamic changes are specified; it may not account for all real-world variations or recovery mechanisms.
1：Experimental Design and Method Selection:
The study uses a Multi-Factor Stress-Strength Model (MFSSM) to analyze reliability. Analytical formulas are derived and verified through simulation.
2：Sample Selection and Data Sources:
A two-channel diversity system with 7 stresses (S1-S7) is considered, with failure probabilities provided in Table I.
3：List of Experimental Equipment and Materials:
BlockSim simulation program by ReliaSoft is used for simulation.
4：Experimental Procedures and Operational Workflow:
The system is simulated for 10,000 hours, with failures treated as common cause failures and non-recoverable. Analytical modeling involves calculating probabilities using integrals and formulas.
5：Data Analysis Methods:
Results from analytical calculations are compared with simulation outputs to verify accuracy.
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