飞行器滚转通道地面半实物仿真系统研究

Aircraft Roll Channel Ground Hardware in Loop Simulation System

为了验证飞行器滚转稳定控制系统,搭建了滚转通道地面半实物仿真平台。根据相关分析法,采用扫频技术,测量系统开环和闭环频率响应,验证利用开环频率特性计算闭环频率特性的正确性。考虑飞行器实际飞行条件,选择-15℃的低温弹道作为典型弹道,在与滚转稳定控制系统相关的滚转阻尼与副翼舵偏效率分别变化20%的最坏情况下,测试飞行器滚转稳定控制系统的频域和时域特性。实验结果表明,该半实物仿真系统能够准确有效地测试飞行器滚转稳定控制系统的各种性能。

In order to verify the feasibility of the aircraft roll stability control system, a roll channel ground hard- ware in loop simulation system was built. According to the correlation analysis and sweep technology, the open and closed loop frequency responses were measured to verify the correctness of the open-loop frequency characteristics to calculate the closed-loop frequency characteristics. By considering the actual aircraft flight conditions and selecting a typical trajectory of-15 ℃, frequency domain and time domain characteristics of roll stability control system were tested with roll damping and aileron rudder partial efficiency that effects roll stability control system change by 20%, which is the worst case. The experimental results show that the hardware in loop simulation system is able to accurate- ly and effectively test the performance of the aircraft roll stability control system.