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针对涡喷发动机起动控制规律的特点,将涡轮发动机加、减速控制规律设计的功率提取法模型,应用于航空涡喷发动机起动控制规律的设计.结合低转速部件特性预测方法和改进的功率提取法,给出了涡喷发动机起动控制规律设计的约束条件和设计步骤.该模型可以用于起动带转过程中起动机带转功率的预测,以及全包线范围内、全气候条件下的涡喷发动机起动控制规律的快速、准确设计.计算结果表明,根据功率提取法模型设计的起动控制规律与实际的发动机起动控制规律吻合较好,该方法具有较好的工程应用价值.
Aiming at the characteristics of starting control law of turbojet engine, the power extraction model designed by turbo engine plus and deceleration control law is applied to the design of starting control law of turbojet engine.Combined with the method of low speed component characteristic prediction and improved power extraction , Gives the constraints and design steps of the turbojet engine starting control law design.The model can be used in the prediction of the power of the starter motor in the start-up and the turbojet The results show that the law of starting control based on the model of power extraction is in good agreement with the actual control law of engine starting, and the method has good engineering application value.