Turbopump is a high-fault-rate component in Liquid Rocket Engine (LRE). In this paper, the reasons of the typical fault of turbopump rotor blade abruption and abscission are analyzed. And, by the method of dynamic analysis, the vibration features of the fault are studied to select the frequency features diagnosing effectively the fault. Then, the extraction method of the features is researched. By means of transform processing, the speed variation influence on the vibration frequency is driven out to extract the stabile frequency features. With the fault data in turbopump historical test, it is shown that the fault of turbopump rotor blade abruption and abscission can be detected and diagnosed effectively by tracking the amplitude variation of the feature frequency.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Typical fault diagnosis method for high-speed turbopump of Liquid Rocket Engine


    Contributors:
    Lurui Xia, (author) / Niaoqing Hu, (author) / Guojun Qin, (author) / Ming Gao, (author)


    Publication date :

    2008-12-01


    Size :

    575556 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Liquid rocket engine turbopump inducers

    Jakobsen, J. K. / Keller, R. B., Jr. | NTRS | 1971



    Experiments on liquid hydrogen turbopump for rocket engine

    Tanatsugu, N. / Kuratani, K. | Tema Archive | 1980


    Reusable Rocket Engine Turbopump Condition Monitoring

    Hampson, Michael E. | SAE Technical Papers | 1984


    Reusable rocket engine turbopump condition monitoring

    Hampson, M. E. / Barkhoudarian, S. | NTRS | 1985