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液体火箭发动机故障诊断器设计及其HIL验证

赵万里 郭迎清 杨菁 薛薇 武小平

赵万里, 郭迎清, 杨菁, 等 . 液体火箭发动机故障诊断器设计及其HIL验证[J]. 北京航空航天大学学报, 2019, 45(10): 1995-2002. doi: 10.13700/j.bh.1001-5965.2019.0044
引用本文: 赵万里, 郭迎清, 杨菁, 等 . 液体火箭发动机故障诊断器设计及其HIL验证[J]. 北京航空航天大学学报, 2019, 45(10): 1995-2002. doi: 10.13700/j.bh.1001-5965.2019.0044
ZHAO Wanli, GUO Yingqing, YANG Jing, et al. Design of liquid rocket engine fault diagnosis device and its HIL verification[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(10): 1995-2002. doi: 10.13700/j.bh.1001-5965.2019.0044(in Chinese)
Citation: ZHAO Wanli, GUO Yingqing, YANG Jing, et al. Design of liquid rocket engine fault diagnosis device and its HIL verification[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(10): 1995-2002. doi: 10.13700/j.bh.1001-5965.2019.0044(in Chinese)

液体火箭发动机故障诊断器设计及其HIL验证

doi: 10.13700/j.bh.1001-5965.2019.0044
详细信息
    作者简介:

    赵万里   男, 博士研究生。主要研究方向:液体火箭发动机故障诊断算法及其硬件在环仿真平台设计

    郭迎清   男, 教授, 博士生导师。主要研究方向:航空发动机先进控制技术、故障诊断与健康管理

    杨菁   女, 博士研究生。主要研究方向:复杂系统的故障诊断与预测

    通讯作者:

    郭迎清, E-mail: yqguo@nwpu.edu.cn

  • 中图分类号: V433.9

Design of liquid rocket engine fault diagnosis device and its HIL verification

More Information
  • 摘要:

    为了实现某型液体火箭发动机机载实时故障诊断,采用FPGA与DSP相结合的方式作为硬件架构设计了故障诊断器,其中FPGA控制高精度A/D转换器进行传感器数据采集,DSP运行故障诊断算法并将结果输出,对故障诊断器的硬件和软件分别进行了设计。提出了一种递归结构识别(RESID)算法用于液体火箭发动机故障诊断,该算法可在6 ms内诊断出流量衰减故障。搭建基于故障诊断器和工控机的硬件在环(HIL)试验平台,采用自动代码生成技术与手写代码结合的方式对RESID算法进行了试验验证,通过上位机界面进行观察。结果表明:RESID算法能准确地诊断出发动机常见的故障并在故障诊断器上实现,算法运行时间为3.9 ms,故障诊断器可以实现实时数据监测和故障诊断,相对于传统平台更加小型化和经济化,既可以作为机载装置使用,也可作为通用平台来开发新算法。

     

  • 图 1  故障诊断器总体架构

    Figure 1.  Overall architecture of fault diagnosis device

    图 2  A/D采集实现框图

    Figure 2.  Block diagram of A/D acquisition implementation

    Figure 3.  Block diagram of display module and alarm module implementation

    图 4  AD7606有限状态机结构框图

    Figure 4.  Structural block diagram of AD7606 finite state machine

    图 5  FPGA控制AD7606有限状态机

    Figure 5.  FPGA controlling AD7606 finite state machine

    图 6  两级RESID网络示意图

    Figure 6.  Schematic of two-level RESID network

    图 7  RESID算法框图

    Figure 7.  Block diagram of RESID algorithm

    图 8  RESID算法训练残差

    Figure 8.  Training residuals of RESID algorithm

    图 9  RESID算法故障诊断结果

    Figure 9.  Fault diagnosis results of RESID algorithm

    图 10  HIL仿真平台总体结构设计框图

    Figure 10.  Overall structure design block diagram of HIL simulation platform

    图 11  故障诊断器和HIL平台实物图

    Figure 11.  Photo of fault diagnosis device and HIL platform

    图 12  液体火箭发动机故障诊断平台上位机界面

    Figure 12.  Upper computer interface of fault diagnosis platform for liquid rocket engine

    表  1  液体火箭发动机传感器测点

    Table  1.   Sensor measurement points for liquid rocket engines

    参数 变量符号 单位
    甲烷涡轮泵转速 nf r/min
    液氧涡轮泵转速 no r/min
    甲烷泵后压力 Pef MPa
    液氧泵后压力 Peo MPa
    副系统甲烷喷嘴前压力 Pgf MPa
    副系统液氧喷嘴前压力 Pgo MPa
    主系统甲烷喷嘴前压力 Pcf MPa
    主系统液氧喷嘴前压力 Pco MPa
    燃气发生器压力 Pg MPa
    燃气发生器温度 Tg K
    燃烧室压力 Pc MPa
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-01-31
  • 录用日期:  2019-04-26
  • 刊出日期:  2019-10-20

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