基于MBSE的小卫星系统设计模型应用研究

Research on application of small satellite system design model based on MBSE

针对基于模型的系统工程(model-based systems engineering,MBSE)在中国小卫星领域如何落地应用的实际问题,利用MBSE方法和标准系统建模语言(systems modeling language,SysML),结合小卫星产品特点和组织特点,提出了一种基于通用模型库的小卫星系统设计模型。基于该系统设计模型,引入卫星快速设计、失效模式及后果分析(failure mode and ffcts analysis,FMEA)两个应用场景,验证了该系统设计模型的正确性和实用性。该模型的构建和应用实现了小卫星领域设计经验向设计知识模型的转化,利用系统模型统一管理、分析分散于不同文档中的复杂数据信息,提升.了小卫星系统设计能力。

To solve the application problem of model-based systems engineering(MBSE)in China's small satellite industry,a small satellite system design model was proposed based on the general model library by using MBSE approach and systems modeling language(SysML)with product and organization characteristics.Based on the system design model,the application scenarios including satellite agile design and failure mode and effects analysis(FMEA)were introduced to validate the correctness and practicability of this model.This modelling and application achieved the transformation of design knowledge and experience into digital model in small satellite system field,which improved the system design capability by unifying the management through system model and analysing the complex data information independently existing in different files at system and subsystem level.