Also it is discussed how to improve loading performance and the actual results using invariance theory . by the feedforward signals of velocity and acceleration, it is expected to expend the bandwidth to 15hz or even higher and reduce the additional torque at 80 percent . in this thesis, i mainly explored the design theory of ehsls and made a lot of experiments on subsystems and the whole system 本文的目的就是设计、调试带有弹簧杆缓冲结构的单通道电液伺服加载台,通过试验比较、验证不同控制算法的工程实际效果;分析和研究应用结构不变性原理如何改善加载系统的动态性能,目的是通过引入速度和加速度的复合前馈信号将系统的动态频带提高到15hz左右,并且有效的抑制力加载系统固有的多余力矩,抑制比要达到80以上。
The development of aero industry requires high-performance loading system, but now, the bandwidth of the equipment is only 8-10hz . in this thesis an single channel electro-hydraulic servo system is designed to validate . compare and explore different control schemes on restraining additional torque inherent in force loading system 为了满足飞行器系统仿真的需要,各相关单位对电液负载仿真台的性能指标提出了很高的要求并提出了各种解决方案,但在满足双十指标的情况下一般达到的频带只有810周。