键合图是建立机械、液压、电气等系统数学模型的有力工具。它可以按规范化的程序进行,适用于非线性系统数学模型的建立,可以处理多输入多输出系统,还可以从实物系统直接对照抽象出它的数学模型,直观性很强,建模方便。键图是美国M.I.T的Paynter教授所发明。该法创立时间虽然不长,但已在很多学科和工程技术领域中获得广泛应用,特别是机、电、液联合作用的综合系统,应用键图更为有利。 键合图是根据能量守恒定律,利用四个广义变 Bond chart is to establish a mechanical, hydraulic, electrical and other mathematical models of the powerful tool. It can be carried out according to a standardized procedure. It is suitable for the establishment of mathematical models of nonlinear systems, capable of handling multiple-input multiple-output systems, and abstracts its mathematical models directly from physical systems. It is intuitive and easy to model. The key figure was invented by Professor Paynter from M.I.T. Although the law was not established for a long time, it has been widely used in many disciplines and engineering fields. In particular, it is a comprehensive system that combines the functions of machine, electricity and liquid, and it is more advantageous to use the key map. Bond graph is based on the law of conservation of energy, the use of four generalized variable