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对象建模在研究对象的特性,描述对象的输入量和输出量之间的关系上发挥着不可替代的作用。但是由于研究对象的复杂性、非线性,往往使得模型参数不容易通过机理分析的方式求得。针对该问题,提出一种机理和实验结合的对象建模方法,该方法通过对象或过程的内部原理得到其机理模型,再结合实验数据或图像特征,确定模型参数。通过单容自衡水箱实验,表明该方法既能准确地描述对象的内部机理,又能简单方便地通过实验确定其模型参数。
Object modeling plays an irreplaceable role in studying the characteristics of the object and describing the relationship between the input and the output of the object. However, due to the complexity and non-linearity of the research object, the parameters of the model are often not easily obtained through the mechanism analysis. Aiming at this problem, a method of object modeling based on mechanism and experiment is proposed. The method obtains the mechanism model through the internal principle of object or process, and then combines the experimental data or image features to determine the model parameters. The experiment of single tank self-balancing water tank shows that the method not only can accurately describe the internal mechanism of the object, but also can determine its model parameters experimentally simply and conveniently.