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本文的基本内容是介绍“应用线性调节理论分析与设计液压系统”和“应用模拟计算技术研究较复杂系统的实时性能”。第一部分(第一至四讲):讲述建立液压系统教学模型的方法,一种是线性简化模型(用于线性分析),另一种是比较接近于实际的模型(用于模拟计算分析)。液压系统包括阀控、泵控、位置、速度、力伺服等。第二部分(第五至七讲):讲述了时域法与频率法的基本内容,并举例说明其用法,特别是第七讲的最后一例,以较复杂的多级电液伺服系统的设计与校正,较详细地介绍了利用线性调节理论来分析设计电液系统的全过程。第三部分(第八讲):介绍了模拟计算的概貌,讲述了模拟计算图的各种画法,并举例说明其在较复杂系统的实时分析中的应用。本文没有涉及,但在液压伺服控制中又占重要地位的问题和液压系统的非线性特征、非线性理论的应用,以及数字计算机的应用等。
The basic content of this article is to introduce “application of linear adjustment theory to analysis and design of hydraulic systems” and “application simulation technology to study the real-time performance of more complex systems”. The first part (first to fourth lectures): The method of establishing the teaching model of the hydraulic system is described. One is a linear simplified model (for linear analysis) and the other is a model that is closer to the actual (for simulation and analysis). The hydraulic system includes valve control, pump control, position, speed, force servo and so on. The second part (fifth to seventh lectures): describes the basic contents of the time domain method and the frequency method, and gives an example of its usage, especially the last example of the seventh lecture, with the design of a more complicated multi-level electro-hydraulic servo system. With the correction, the whole process of analyzing and designing the electro-hydraulic system using the linear adjustment theory was introduced in more detail. The third part (Lesson 8): Introduced the outline of simulation calculations, described the various drawing methods of the simulation calculation diagram, and illustrated its application in the real-time analysis of more complex systems. This article does not involve, but in the hydraulic servo control also occupies an important position and the nonlinear characteristics of the hydraulic system, the application of nonlinear theory, and digital computer applications.