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Stability of a string in axial flow

George Triantafyllou, Chryssostomos Chryssostomidis
1985
MITSG 85-24J

The equation of motion of a long slender beam submerged in an infinite fluid moving with constant speed is derived using Hamilton's principle. The upstream end of the beam is pinned and the downstream end is free to move. The resulting equation of motion is then used to perform the stability analysis of a string, i.e., a beam with negligible bending stiffness. Conditions under which the string is stable are derived. Results are applicable to towed hydrophone arrays, barge trains, etc.

type: Technical reports

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