Results are presented of firing a Nike rocket against a backstop for the purpose of obtaining pressure fluctuations in the rocket case and determining their relationship to structural vibrations of the case. Special care was required to obtain these pressure fluctuations because of the much higher static pressure generated in the rocket. Very small pressure fluctuations within the rocket case can cause significant vibration levels. A previously observed high frequency was shown to decrease with time before completely disappearing at about 1 second of burning time. The vibration of the case itself is probably related to the longitudinal structural modes at frequencies below 500 Hz and is dependent on local structural conditions at frequencies above this value.


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    Title :

    Effects of experimentally measured pressure oscillations on the vibration of a solid rocket motor


    Contributors:

    Publication date :

    1972-11-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English






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