Computer assistant analysis for reliability of airborne electromechanical systems

To improve the reliability of airborne electromechanical systems, the redundant systems are adopted, which can reach the fault-tolerant and realize the high reliability and safety of aircraft. This paper develops the reliability analyzing platform ReliaApp which is used for coupling among redundancies and degradation of dynamic performance. Different fault-tolerant designs can be determined with failure mode and effect analysis, fault tree analysis and Markov state transferring theory, and also the determination of different redundancy designs, the quantified evaluation and the weak loops of the system can be given. This platform is used for configuring the redundancy of system and improving the design, so as to insure the high reliability and safety of aircraft. The practical example indicates that the platform is an effective assistant tool for analyzing the reliability of airborne electromechanical systems.