液压大系统的性能参数法

本文针对液压大系统仿真与辨识的需要,提出并发展了一种性能参数建模法。该法使液压系统的数学模型建立在液压元件数学子模型的基础之上,根据拓扑结构在元件结点上建立系统模型相应的方程。与以往传统的显式状态空间表达式不同,该法采用隐式状态空间表达式。通过计算机仿真证明这种方法通用性强,运算速度快并开辟了静动态仿真合一的途径。从应用的角度看,该法面向用户,适用于大系统仿真。

Performance Rating Modelling Approach for Large Scale Svstem of Fluid Power

According to the need of simulating and identifying large scale system of fluid power, a Performance Rating Modelling Approach has been proposed and developed in this paper by the author. This approach is designed for modelling the fluid power system based on the models of hydraulic components. Then the corresponding equations of the system model can be built in terms of the topological structure of the system. It is different from the conventional explicit form for this approach being expressed in an implicit form of the state space. Verified by simulating in computer, the advantages of the approach are its good generality, fast calculating speed in computer as well as unifying static simulation and dynamic simulation all together. In the view of application, this approach is oriented to users and fitted for simulating the large scale system.