飞机失速/尾旋特性的预测和试验研究

Prediction and test of aircraft stall/spin characteristics

以一架三角翼战斗机为例 ,详细地介绍了利用风洞大迎角静、动态试验数据及旋转天平试验数据 ,开展飞机大迎角全局稳定性分析、六自由度计算及地面飞行模拟试验等预先研究。利用投放模型进行了自由飞尾旋试验以及最终完成的全尺寸飞机的失速 /过失速 /尾旋验证试飞 ,对预测结果与试验结果进行了相关分析 。

By taking the example of a delta wing fighter, this paper describes in detail the prediction research of bifurcation analysis and catastrophe theory methodology (BACTM), six degree of freedom computation and ground flight simulation of aircraft at high angle of attack, using static and dynamic wind tunnel test data and the test data of a rotation balance at high angle of attack. It also describes the free flight spin test on a drop model and the stall/post stall/spin demonstration flight tests on the full scale aircraft. Correlation analysis is made between the predictions and the test results.