微型涡喷发动机推进系统的试验建模
Experimental modeling of micro turbine engine propulsion systems

先进战机的研制过程中，缩比验证机的试飞是十分重要的环节，而缩比飞机通常选用微型涡喷发动机作为推进系统，因而对该系统进行数学建模成为必要。该文以微型涡喷发动机为对象，以发动机地面试验数据为基础，利用Wiener模型结合最小二乘方法建立了微型涡喷发动机的输入信号到发动机转速的模型、发动机转速到发动机推力的模型。对所建模型进行了验证，为进一步的微型涡喷发动机控制研究奠定了基础，为缩比验证机的控制方案制定提供了模型支持。
Abstract：The development of advanced fighters requires test flights on sub-scaled demonstrators. A sub-scaled fighter usually uses a micro turbine engine as the propulsion system which requires a mathematical model of the engine. Data from ground tests of a micro turbine engine was correlated to develop a signal-rotational speed model and a rotational speed-thrust model using the Wiener models along with the least square method. The models were validated to lay the foundation for further research on the control of the micro turbine engine and control methods for the sub-scale demonstrator.