基于可视化界面的液氧甲烷发动机故障建模设计与实现

Design and implementation of Liquid oxygen/methane engine fault model based on visual interface

摘要:

针对新研制发动机故障样本少,故障模式与效应不易分析等问题,本文基于可视化环境构建了液氧甲烷发动机故障建模方法,首先分析发动机的工作过程和故障模式,提出了添加故障因子的方式构建各个组件的数学公式；其次,采用了一种基于图形化的建模软件搭建了故障仿真系统；最后,基于该平台系统进行了发动机的故障仿真分析。结果表明基于可视化建模平台所构建的发动机故障模型系统能够满足需求并且界面人性化,易于操作。为后续故障诊断工作奠定了坚实的基础。

Abstract:

Due to the lack of fault sample data, it is difficult to obtain the feature of fault models. The liquid oxygen/methane engine fault model based on visual interface was designed and implemented. Firstly, based on the engine working process and fault patterns, the mathematic expression with fault parameters was designed. Secondly, the visual interface was adopted to setup the fault engine model system. Finally, the simulation of fault engine model was analyzed. The results show that the fault engine model and the platform work well and easy to operate. The fault engine model is very important for the future work.