Complex simulation system credibility evaluation method based on network topology path

Abstract

The invention discloses a complex simulation system credibility evaluation method based on a network topology path, and belongs to the field of system simulation. And under the condition that the nodecredibility of the single model is known, the credibility of the whole complex simulation system is quantified. The method comprises the following steps: firstly, analyzing an information interactionrelationship between component models in the complex simulation system, calculating weights of edges between nodes according to objective indexes, and abstracting the complex simulation system into adirected weighted model interaction network; and calculating the out-degree of each node in a model interaction network, selecting a node with a relatively high out-degree as an initial node, starting from the initial node, obtaining different single execution paths, calculating the credibility of the single execution path, and integrating the credibility of all the execution paths to obtain thecredibility of a simulation system. Aiming at a complex equipment simulation system with the characteristics of complex mechanism, complex input and output variables, strong uncertainty and the like,the invention solves the problem that it is difficult to carry out quantitative analysis on evaluation of the credibility of the complex equipment simulation system.

Description

technical field [0001] The invention belongs to the field of system simulation, and relates to a method for evaluating the credibility of a complex simulation system, in particular to a method for evaluating the credibility of a complex simulation system based on a network topology path. Background technique [0002] The reliability assessment technology of simulation system has developed to the present stage, and the method for the credibility assessment of single-model simulation system is relatively mature. However, in recent years, with the complexity of simulation objects and the improvement of user requirements for the application of simulation systems, simulation technology has entered a new stage focusing on complex system simulation. How to analyze the interaction relationship between component models when the reliability of a single simulation model is known, and then evaluate the reliability of the entire complex simulation system is a major problem at present. ...

AI Technical Summary

Problems solved by technology

However, while it produces new capabilities through integration and interaction, new problems may also arise, such as the overall credibility of the complex equipment simulation system; the risk of credibility reduction that may be faced by the interactive relationship between systems; The cascading effect brought about by the propagation and transformation of low credibility in the system leads to a decrease in the credibility of the simulation system

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