摘要
伪攻角反馈驾驶仪是三回路过载驾驶仪的一种典型结构。从伪攻角反馈驾驶仪的数学模型出发,建立了控制增益与系统开环截止频率及闭环极点的解析关系。然后分别从系统时域响应、高频部件带宽约束、舵机角速率极限约束及稳定裕度指标的角度,提出了闭环极点配置及开环截止频率选择的指导原则,从而形成了自洽的驾驶仪设计方法,算例验证了方法的有效性。
The autopilot with pseudo angle of attack feedback is a typical structure of three-loop ac- celeration autopilots. The mathematic model of autopilot with pseudo angle of attack feedback is firstly present, which concluded the analytic relation between control gains and open loop crossover frequency and close loop poles. Then based on the analysis of system time domain response, the constraint of the bandwidth of high frequency components, the constraint of the limitation of the fin rate and the phase margin index, the rules of configuring close loop poles and choosing open-loop crossover frequency are present. Therefore the self consistent design method is built, which is validated by an autopilot design ex- ample.
出处
《现代防御技术》
北大核心
2014年第1期40-45,共6页
Modern Defence Technology
基金
航空科学基金项目(20110112001)
