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驾驶员诱发振荡(PIO)是由于驾驶员飞机之间的不良的相互作用引起的一种持续的或不可控制的人-机耦合振荡。文章建立了PIO预测分析所需的数学模型,其中受控对象数学模型采用快速傅立叶变换法求得,驾驶员模型采用修正Neal-Smith驾驶员模型。分析研究了两种典型的PIO预测准则:Neal-Smith准则和带宽准则,并提供了相应的计算方法。最后通过俯仰跟踪任务的仿真方法对计算结果进行了验证。
Driver Induced Oscillation (PIO) is a continuous or uncontrollable man-machine coupled oscillation caused by poor interaction between pilot aircraft. In this paper, the mathematical model of PIO prediction and analysis is established, in which the mathematical model of controlled object is obtained by using Fast Fourier Transform method and the driver model is modified by Neal-Smith driver model. Two typical PIO prediction criteria are analyzed and studied: Neal-Smith criterion and bandwidth criterion, and the corresponding calculation methods are provided. Finally, the simulation results of the pitch tracking mission are validated.