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对液压伺服机构进行实物模拟研究,可以简化自动飞行控制、飞行模拟器以及其它机械的输出转动机构的综合工作。我们在此建立了由位置控制系统所组成的负载液压伺服机构的一般非线性的数学模型,就实际使用的特定负载条件(即弹性负载、粘性负载等),对这个模型作了详细的说明,并弄明白了这个模型的使用范围,比较了频率特性的计算结果和频率特性的试验数据。研究结果表明,数学模型能精确地描述具有任何特定负载条件的液压伺服机构的动态特性(直到10赫)。
The physical simulation of the hydraulic servo can simplify the integration of automatic flight control, flight simulators, and other machines’ output rotary mechanisms. Here we set up the general non-linear mathematical model of the hydraulic servo system with load-position control system. This model is described in detail in terms of the actual load conditions (ie elastic load, viscous load, etc.) And understand the scope of the use of this model, compared the frequency characteristics of the calculation results and frequency characteristics of the experimental data. The results show that the mathematical model can accurately describe the dynamic characteristics of hydraulic servo (up to 10 Hz) with any specific load conditions.