A cascading failure analyzing approach based on the axiomatic functional and physical domain mapping for complex product

摘要

Cascading failures (CFs) in a complex product are the failures of interconnected functions in which the crash of a function can trigger the failure of successive functions. They can affect product function failure probability seriously, and their root causes analysis is a very complicated and challenging task. Therefore, it is significant to develop an applicable analyzing method considering the effects of CFs for complex product failures. In this paper, the domain mapping theory in Axiomatic design is adopted to modeling the effect of cascading failure for the first time, and the latent failure occurrence possibility is computed by the aid of the design matrix. Firstly, the mechanism of cascading failure is expounded, its complexity and analyzing demands are identified. Secondly, the domain mapping theory in Axiomatic design is applied to model the propagation process of cascading failure. Thirdly, the complicated effect of cascading failure is modeled by the design matrix quantitatively, and the occurrence possibility of cascading failure is computed by design matrix. Finally, the proposed method is illustrated through detailed analysis of a wireless temperature measure device component of a complex product.