基于风洞试验数据和CFD数据,建立了某型飞机上、下两片方向舵在松浮、卡滞和脱落等故障的数学模型;针对方向舵脱落故障,在飞行模拟器上进行了人在环的侧风着陆仿真试验,验证了模型的准确性,得到了与实际侧风响应相吻合的故障模型;最后,基于此模型探讨了方向舵故障下的侧风着陆安全性与驾驶员负荷。 Based on the wind tunnel test data and the CFD data, a mathematical model of the failure of the upper and lower rudder on a certain plane, such as loose float, jamming and falling off, is set up. According to the failure of the rudder on the flight simulator, The cross-wind landing simulation test verifies the accuracy of the model and obtains a fault model that is consistent with the actual crosswind response. Finally, based on the model, the safety of crosswind landing and driver load under rudder failure are discussed.