基于MBSE的发动机DFMEA开发

Development of MBSE Based Engine DFMEA

本文介绍了DFMEA(Design Failure Mode and Effect Analysis,设计失效模式和效果分析)的概念、目前行业内发动机DFMEA的现状及发动机MBSE(Model Based System Engineering,基于模型的系统工程)。根据MBSE的思路将发动机分成4个层级,将层级划分引入FMEA流程,进行发动机DFMEA的开发,整个发动机DFMEA体系分成4个层级。以气门系统DFMEA为实例介绍了基于MBSE的DFMEA建模,根据气门系统的BLOCK图,完成气门系统模型化,在专业模型化工具中搭建气门系统模型。

This paper introduces concept of DFMEA(Design Failure Mode and Effect Analysis),engine DFMEA status in current industry and engine MBSE(Model Based System Engineering).Engine is divided to 4 levels per MBSE idea,induces level dividing to FMEA process,develops engine DFMEA.The whole engine DFMEA structure is divided to 4 levels.Introduces MBSE based DFMEA modelling using example of valvetrain system DFMEA,per BLOCK diagram of valvetrain system completes valvetrain system modelization,establishes valvetrain system model in specialized modelizing tool.