Several Space Shuttle Main Engines (SSME) have experienced very high acceleration responses measured in the main injector of the powerhead during static firings. Data from previous hot fire SSME tests relating to the 4000 hertz phenomenon were reviewed to provide a better understanding of the nature of this structural response. The objective was to technically understand the way this phenomenon works, recommend a fix and test the fix.


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    Title :

    SSME main injector 4000 Hertz phenomenon


    Contributors:

    Publication date :

    1986-08-21


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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