摘要
直升机飞行操纵系统频率特性反映了正弦信号作用下系统响应的性能,是评价系统动态响应特性和噪声抑制性能的指标之一。由于直升机飞行操纵系统组成复杂、不同操纵控制通道之间存在耦合,因此难以通过理论分析方法获得系统精准的动态响应特性,而通过试验法可以获得系统真实准确的频率特性参数。现行试验方法为扫频响应分析法,通过分析该试验方法下获得的试验数据能够直观、精确地反映直升机飞行操纵系统的频率特性。
The frequency characteristics of helicopter flight control system reflect the performance of system response under the action of sinusoidal signal, and it is one of the indexes to evaluate the dynamic response characteristics and noise suppression performance of helicopter flight control system. Due to the complex composition of helicopter flight control system and the coupling between different control channels, it is difficult to obtain the accurate dynamic response characteristics of helicopter flight control system by theoretical analysis method. Through the experimental method, the true and accurate frequency characteristic parameters of the system can be obtained. The current test method is the sweep response analysis method. Through the analysis of the test data obtained through this test method, the frequency characteristics of the helicopter flight control system can be reflected intuitively and accurately.
出处
《科技创新与应用》
2019年第20期13-16,共4页
Technology Innovation and Application
关键词
飞行操纵系统
频率特性
动态响应特性
扫频响应分析
flight control system
frequency characteristic
dynamic response characteristic
sweep response analysis
