K8飞机自由飞模型放宽静稳定度研究

RSS RESEARCH OF FREE-FLIGHT MODEL TEST FOR K8 AIRCRAFT

介绍对一架带有纵向数字飞控系统的Ｋ８飞机自由飞模型所进行的放宽静稳定度的试验研究，获取利用模型进行此种试验的可行性和实施方法，模型采用了四种重心构型：正常重心、中立重心、后移２％ｂ＿Ａ和后移４％ｂ＿Ａ。模型上加装了控制增稳装置，进行了控制律设计。取得较为满意的试验结果。地面仿真试验结果与飞行试验结果也是基本一致的。试验达到预期的目的。

This paper introduces the Relaxed Static Stability(RSS) research of free-flight model test for K8 aircraft with digital Flight Control System (FCS)and studies itsmethods and practicability.The model has been 4 position of center of gravity:normal,neutral, backward 2%b_A and backward 4%b_A. The control laws have been designed usingmodels with control stability-augmentation system and are quite satisfactory. It has beenshown that results of the ground simulation are agreed with the flight test results.It hasattamed that the purpose of the test.The RSS research method with free-flight model are reliable.