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2 2002

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Natural frequencies of a multi-articulated tower immersed in still fluid

Uściłowska-Gajda A.

Vibrations in Physical Systems

2002

Vol. 20

292--293

Chaotic motion of a multi-articulated tower immersed in waving fluid: numerical experiment

Uściłowska A., Kołodziej J. A.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2002

Vol. 6, No 3

371-377

The offshore structures, such as multi-articulated towers, manipulators working in waving fluid are more and more popular structures. Commonly they are modelled as an inverted pendulum. The motion of such tower immersed in waving fluid is under consideration. It is assumed that the tower is hinged to the seabed by the hinge with friction. The joint of tower elements is the hinge with friction, as well. Motion of tower loaded by regular wave fluid force is considered. The numerical experiment shows that the multi-potential systems may move chaotically for some parameters of the tower and the fluid.