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本文简要地叙述了歼×气动导数试飞的目的、意义,飞行驾驶技术,数据采集系统和数据处理方法。并给出了本次飞行试验提取气动导数所采用的飞机数学模型。给出了飞行试验结果及其简略的分析。飞行试验结果包括:飞机纵向气动导数、短周期模态特性,横侧气动导数与荷兰滚模态特性。由于本次试飞采用了较先进的数据采集系统和数据处理方法,试验结果可靠,可供有关单位使用。
This article briefly describes the purpose, significance, flight driving technique, data acquisition system and data processing method of J-X aerodynamic test flight. The mathematical model of aircraft used in this flight test to extract the aerodynamic derivatives is given. The flight test results and its brief analysis are given. Flight test results include: aircraft longitudinal aerodynamic derivatives, short-period mode characteristics, lateral aerodynamic derivatives and Dutch roll mode properties. Since this test flight uses a more advanced data acquisition system and data processing methods, the test results are reliable and available to the relevant units.