飞机俯仰敏捷性的数字仿真与模拟试验

NUMERICAL CALCULATION AND SIMULATION OF PITCH AGILITY FOR AN AIRCRAFT

借鉴国外研究飞机俯仰敏捷性机动的经验，选用了府仰敏捷性评价尺度，确定了数字仿真用的数学模型以及操纵规律。具体计算某机在常规空战飞行高度和速度范围内的俯仰敏捷性，包括加到最大过载所需的时间和卸到零过载所需的时间、最大正过载变化率和最大负过载变化率及最大上仰和下俯机动范围内的俯仰角速率。最后在地面固基模拟器上进行俯仰敏捷性机动模拟试验。试验结果与数字仿真结果基本一致。

In this paper,using the experience of other countries for reference,thepitch agility metrics are chosen and the aircraft motion mathematical modcl and controllaws are determined.The pitch agility metrics were calculated at the altitude and speedregion of air combat for an aircraft,including time to load to maximum load factor andto zero load factor,positive and negative load factor rate,pitch rates during maximumauthority pitch up and pitch down maneuvers.Finally,the simulation of pitch agility ma-neuver was tested on the ground-based simulator.The simulating results are consistentwith the calculating results.