流图的反馈回路结构分析方法

The Analyzing Way About the Feed Back Loop′s Structure of Flow Diagraph

运用系统动力学研究复杂系统,通常必须了解该系统的流图的反馈回路的结构,而目前计算反馈回路的方法比较复杂,通过将强简化流率基本入树的每棵树转换成树向量,树向量构成矩阵,并定义矩阵相关元素的运算,可比较简单地算出流图的各阶反馈回路的条数,从而揭示流图的反馈回路结构的性质.

When we researcb complex system based on system dynamics, we must know the feed back loop＇s structure of flow diagraph, but the way of calculating the feed back loop is relatively complex, so in the paper, the branchs of strong simplied RATE Variable Fundamental In-tree are transformed to one special matrix, we define some operation, then can easily obtain all feed back loop number of flow diagraph and open out the feed back loop＇s structure of flow diagraph.