航空发动机燃油齿轮泵寿命估算方法研究

摘要

Based on PID domination principle ,fuzzy control theory and neural network control theory active suspension with the single neuron controller and neural PU5-controller is structured,active suspension with the single neuron controller is structured by means of s-function.Furthermore,online identification neural network control system is structured by means of the online identification function of three-layer BP neural network,on the basis of it, weight of neural PID-controller is adjusted online and proceed with Co-simulation, The output of parameters data such as vibration acceleration is analyzed and compared with traditional PID -controller ,The application of fuzzy control theory and neural network control theory have a better improvement for ride comfort, and proved effectiveness and accurateness of co-simulation.%针对航空发动机燃油齿轮泵在设计阶段缺少寿命估算校验的问题,给出了一种使用修正部件法估算航空燃油齿轮泵寿命的方法.该方法首先以航空燃油齿轮泵的轴承作为寿命敏感部件,运用相对成熟的方法对轴承进行了寿命估算；其次通过分析研究选取了合理的寿命影响因子,运用修正系数对轴承的寿命进行了修正；最后通过相关分析推导得出了航空燃油齿轮泵寿命的估算公式.结果表明,该方法可在设计阶段对航空燃油齿轮泵的寿命进行估算和校验,完善了航空燃油齿轮泵寿命研制的过程.