摘要
建立了考虑结构刚度以及舵面绕转轴转动惯量的液压伺服作动系统数学模型,以某型机为例在MATLAB环境下进行了仿真,研究了飞机舵面液压伺服作动系统性能及结构刚度、舵面绕转轴转动惯量等结构参数对作动系统性能的影响。结果表明:飞机液压伺服作动系统的液压固有频率与飞机舵面的固有频率共同构成了整个系统的谐振频率,若两者频率设计不合理将严重影响系统稳定性。
The influence of the aircraft structure parameters on the flight control actuation system is more serious. Base on this problem, the mathematical model of the aircraft flight control actuation system with consideration of the structural stiffness and the moment of inertia of control surfaces was built up, then simulation analysis was carried out on the influence of the aircraft structure parameters on the flight control actuation system. Studies have shown that, the resonance frequency of the whole system consists of the hydraulic inherent frequency with the intrinsic frequency of the control surfaces. If any one of both frequencies is designed unreasonable, the system stability will be seriously affected.
出处
《航空科学技术》
2016年第3期18-22,共5页
Aeronautical Science & Technology
关键词
液压伺服作动系统
结构刚度
转动惯量
hydraulic servo control actuation system
structural stiffness
moment of inertia
