对液压系统进行动态性能分析、仿真和自动控制时,首先必须知道系统的数学模型。虽然,借助纯理论分析法可建立系统的数学模型,但对于液压系统而言,由于存在许多难以确定的“软”参数,致使所得模型与实际模型往往相差甚远。为此,本文根据一种实验建模理论——系统辨识,采用Apple-Ⅱ微型计算机,以及自行研制的计算机最小系统MINIS和软件,对有关液压系统的相关辨识进行了研究,获得了该系统的传递函数。 Hydraulic system for dynamic performance analysis, simulation and automatic control, we must first know the mathematical model of the system. Although a systematic mathematical model can be established using purely theoretical analysis, the hydraulic system is often far from the actual model due to the existence of many hard-to-determine “soft” parameters. Therefore, based on the experimental modeling theory-system identification, this paper studied the related identification of hydraulic system by using Apple-II microcomputer and MINIS, the smallest computer system developed by ourselves. Transfer Function.