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利用蒙特卡罗仿真方法对飞机环控系统进行安全性分析,包括故障树建模、绘制仿真流程图,并根据流程图编写MATLAB程序,通过对故障树结构函数的蒙特卡罗仿真避免了故障树定量分析求解繁琐的问题。计算结果表明,此方法简易可行,可以获得系统的安全性指标,包括系统不可靠度、系统平均寿命和部件重要度等,该方法可以为复杂系统的安全性分析和系统维修提供有力支持。
The Monte Carlo simulation method is used to analyze the safety of the aircraft environmental control system, including fault tree modeling, simulation flow chart and MATLAB program according to the flow chart. The fault tree is avoided by Monte Carlo simulation of the fault tree structure function Quantitative analysis of complex problems. The calculation results show that this method is simple and feasible, and can obtain the system safety index, including system unreliability, system life expectancy and component importance, which can provide strong support for the safety analysis and system maintenance of complex systems.