研究目的
The purpose of the analysis is to establish dependencies in order to quantify the impact on fault-tolerant and the effectiveness of the redundancy contained in the structure of the systems. Three fault-tolerant systems are considered: Triple Modular Redundancy (TMR), Dual Modular Redundancy system with global reservation (DMRGR), and Dual Modular Redundancy system with partition reservation by replacing (DMRPR).
研究成果
The DMR with a partial reservation is the most reliable structure, though it has one additional structural unit compared to the TMR system. The TMR system is better than a DMR system with a general reservation in both reliable and economic indicators.
研究不足
The study does not examine the problem of diagnostics and tools for detection of failures, assuming replacement occurs automatically without interrupting work. The reliability of the majority device (voter) is also not considered.
1：Experimental Design and Method Selection:
The study involves analytical modeling and simulations to compare the reliability of TMR, DMR with global reservation, and DMR with partial reservation systems. Formulas for system availability and Mean Time Between Failures (MTBF) are derived and verified through simulation.
2：Sample Selection and Data Sources:
The study uses theoretical models and simulations without specifying external data sources.
3：List of Experimental Equipment and Materials:
The BlockSim program of ReliaSoft is used for simulations.
4：Experimental Procedures and Operational Workflow:
Simulations are performed for a total of 10,000 hours with 1000 simulations for each system type. Parameters such as MTBF and MTTR are set for each system.
5：Data Analysis Methods:
The study uses exponential distribution models for reliability analysis. Results are compared graphically to determine the most reliable system structure.
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