直升机颤振试飞激励系统的设计与实现

Design and Implementation of Helicopter Flutter Flight Excitation System

针对电传直升机结构动力学稳定性和飞行品质相关试飞科目的需求,首次设计了采用基于PowerPC和国产嵌入式实时操作系统ACoreOS架构的直升机颤振试飞激励系统。针对直升机复杂传动关系,采用多通道耦合激励输出技术和可靠的多种保安监控策略,实现了高精度、高可靠性的激励输出。通过仿真测试及设备实际工程应用,验证了该直升机颤振试飞激励系统设计的有效性和设备的适用性。为有效降低试飞风险,提高试飞效率,缩短试飞周期,提供强有力的支持保障。

The work aims to design a helicopter flutter flight excitation system based on the architecture of PowerPC and the domestic embedded real-time operating system ACoreOS for the first time to meet the requirements of fly-by wire helicopter flight test subjects about structural dynamic stabilities and flying quality.In view of the complex transmission relationship of helicopters,multi-channel coupled excitation output technology and various security monitoring measures were applied to realize the high-precision and reliability excitation output.The effectiveness of design and the applicability of the equipment were verified by the simulation tests and the practical engineering applications.The helicopter excitation system provides strong support and guarantee for effectively reducing the flight test risk and test cycle and improving the flight test efficiency.