J-7(Ⅱ)型飞机失速/过失速/尾旋特性预测计算

THE PREDICTING CALCULATION FOR AIRCRAFT J-7(Ⅱ)'S STALL/POST-STALL/SPIN CHARACTERISTICS

本文用六自由度非线性方程组计算分析了J-7(Ⅱ)型飞机的失速/过失速/尾旋特性,特别是按照MIL-S-83691A的验证要求计算检查了飞机的偏离/尾旋敏感性,检查了六自由度计算与判据计算结果的相关性,并提供了计算结果与试验结果的比较.

The six-degree-of-freedom non-linear equations are used in this paper for the analysis of aircraft J-7(Ⅱ)'s stall/post stall/spin ch(?)racteristics. Especially, the departure/spin sensitivity of this aircraft is checked against the demonstration requirements of the MIL-S-83691A. Also, the compatibility check of the six-degree-of-freedom calculation and the criteria results is done. Besides, the comparison between of the calculating and the flight test results are provided.