系统动力学反馈环快速计算法研究.

Aiming at the problems of long computation time, error-prone results, and difficulty in verification associated with the traditional determinant feedback loop calculation method in system dynamics, a rapid calculation method for system dynamics feedback loops was proposed.This method utilizes the Loops function of Vensim software, the feedback loop set of the system was generated by taking each level bit variable as the starting point, followed by the removal of duplicate feedback loops to obtain a set of all non-repetitive feedback loops in the system. Taking the "Base+Farmers" supply chain complex system of Mingxin Farm in Pingxiang as an example, 11 strongly simplified flow rate basic in-tree models that have been constructed, and both the determinant calculation method and this new method were used to compute all feedback loops in the system.The research showed that both methods yielded the same results, but the fast calculation method of the feedback loop significantly reduced the calculation time and improved the calculation accuracy.Based on this, the system structure can be deeply analyzed to put forward corresponding management countermeasures. [ABSTRACT FROM AUTHOR]