航天系统关键设备故障诊断信息源研究

伺服机构是航天系统的关键设备之一,对其进行故障诊断的基础是建立信息源模块。将伺服机构的信息分定性信息和定量信息,以这2种信息为基础,通过功能分析、结构设计及可视化处理,构建了伺服机构信息源模块。该模块在功能上可以替代硬件模拟器,产生研究所需的各种信号,既可以对伺服系统的正常信号进行仿真,也可设置大量的故障,设计思想具一定的通用性,比较好的解决了故障诊断中的样本数据产生与获取问题。

Research on the Information Source for the Fault Diagnosis of Key Components in Space System

Servomechanism is one of the key components of the space system,for which the base of fault diagnosis is its information source.Servomechanism information can be divided into two species: qualitative information and quantitative information.By analyzing the function,design of the framework and visual modeling,the module of the information source is set up. This module can take the place of the hardware simulator and generate lots of signal needed,also can simulate the normal signals and fault signals.This module can offer sample data for servomechanism fault diagnosis.