米-171自动驾驶仪通用半实物仿真试验系统研究

General HILS System Research of Mi-171 Helicopter Autopilot

构建了一套通用的米-171直升机AΠ-34Б自动驾驶仪模拟式和数字式半实物仿真试验系统,研制了模拟式和数字式组合接口的航电信号仿真器,建立了米-171直升机非线性飞行动力学数学模型,搭建了模拟式和数字式飞行控制系统的地面半实物仿真试验环境,依据飞行试验大纲开展了地面系统仿真试验和空中飞行试验。飞行试验结果表明,所有科目均一次性达标,空中试飞和地面试验结果一致性良好,仿真试验系统完整有效。

A general analogous and digital Hardware-In-the-Loop-Simulation（HILS） system was built for AΠ-34Б autopilot of Mi-171 helicopter. Simulator of avionics signals with hybrid interface for both analogous and digital signals was developed. A nonlinear flight dynamics mathematical model was built for Mi-171 helicopter. And on-ground test condition was built for analogous and digital flight control system. Test of on-ground system simulation and aerial flight were done by referring to Flight Test Outline. Results of flight test indicate that all classifications satisfy criteria at once, and the test results of aerial and on-ground are in good concordance and simulation test conditions are complete and effective.