A Qualitative Modeling Method Based on Qualitative Reasoning of Fault Propagation in Circuit System
CHEN Chen
MA Xiaolong
ZHANG Shigang
ZENG Zhaoyang
LIU Dandan
Abstract：Aimed at the problems that in the existing fault propagation models and analysis methods based on qualitative reasoning often neglect the non?structural failure caused by the drift of performance parame-ters,this paper proposes a brand new method of fault propagation modeling and analysis,as well as the propagation mechanism,signal?aggregation mechanism,influence mechanism,and the reasoning process. In this method,taking the analysis of fault signal strength as a core,the fault signals produced in the source in the connectivity models transmit to each indenture level in the qualitative network model of cir-cuit system through the hierarchical modeling way.Then,the paper adopts the colored qualitative network to evaluate the fault effect and its severity quickly and intuitively.Finally,the paper verifies the practical effect of this method by the autopilot at a certain robot plane.
Keywords：fault propagationqualitative modelingconnectivity modelcolored qualitative network
Publication Date：2016-08-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 70-75 )