Function Oriented Reliability Design Using Belief Reliability-Enhanced MBSE Method  
Author

Wenxi Li

 
Co-Author(s)

Qingyuan Zhang;  Jian-An Zhang; Yi Jin; Rui Kang

 
Abstract Reliability analysis is increasingly required to be integrated into the early design stage of complex systems. However, traditional document-based reliability activities often remain separated from system modeling, making it difficult to maintain semantic consistency, traceability, and quantitative continuity from design information to reliability calculation. To address this issue, this paper proposes a Belief Reliability-enhanced MBSE method for function-oriented reliability design. First, an extended SysML Profile for Belief Reliability is constructed to explicitly represent reliability-related semantics, including functions, performance parameters, variables, thresholds, margins, degradation mechanisms, and equation-related objects. Second, a rule-driven mechanism is developed to automatically generate Function, Performance and Margin Analysis (FPMA) and Performance Parameter Degradation Analysis (PPDA) artifacts from the semantically annotated SysML model. Third, the generated artifacts are reorganized into equation-oriented inputs to support the construction of reliability equations. Finally, a UAV emergency parachute system is used as a demonstration case

 
Keywords Belief Reliability, MBSE, FPMA, PPDA, Function Oriented Reliability Design
   
    Article #:  RQD2026-265
 

Proceedings of 31st ISSAT International Conference on Reliability & Quality in Design
August 5-7, 2026