Head to base transfer function characteristics of a cylindrical tank partly filled with liquid

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National Aeronautics and Space Administration, 1970 - Mathematics - 39 pages
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This study presents an analysis of the transfer function of head motion to base motion for a thin-walled cylindrical tank partially filled with a liquid. This transfer function is part of the overall structural description for the analysis of POGO type instabilities in rocket vehicles. The analysis utilized the double Laplace transform to achieve a closed form approximate solution. An experimental verification of the analysis was performed using a cylindrical plastic tank containing water. The results clearly demonstrated the importance of considering fluid resonance effects on head to base reponse. Indeed, for at least two fluid heights the fluid mode effects dominated the mechanical modes for this transfer function.

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