Method for evaluating reliability of aircraft engine aiming at competing failure
An aero-engine, competitive failure technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as increasing analysis complexity, reliability evaluation complexity, and increasing calculation difficulty, and achieves improved data utilization. Efficiency, the effect of improving the efficiency of information utilization
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[0019] Aiming at the simultaneous existence of aero-engine sudden failure failures and degrading failures. The two failures are a form of competitive failure and affect the reliability level of aero-engines together. An aero-engine reliability assessment method for competitive failures is proposed. The implementation process can be Divided into the following 6 steps, such as figure 1 Shown.
[0020] 1. Analyze the failure laws of aero-engines, analyze the effects of degradation failure and sudden failure failure as two typical failure modes on the reliability of aero-engines, and judge whether the failure mode of aero-engines is a competitive failure.
[0021] The failure of a complex system is characterized by the coexistence of multiple failure modes. According to different failure mechanisms, it can be divided into performance degradation failure and sudden failure. Sudden failure refers to the sudden loss of a specified function at a certain moment, and a degraded failure is a ...
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