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Motion in an ideal liquid of a body containing a moving lumped mass inside it. (Russian, English) Zbl 1133.76007
Prikl. Mat. Mekh. 67, No. 4, 620-633 (2003); translation in J. Appl. Math. Mech. 67, No. 4, 553-564 (2003).
The authors study the motion of hydro-mechanical system consisting of a rigid body symmetric with respect to three mutually perpendicular planes. There is a material point inside the body. The body is immersed into infinite ideal liquid which performs irrotational motion and rests at in the infinity. The body moves in the liquid due to the displacements of the material point with respect to the body. The authors analyze the cases when the body sinks or floats.

76B10 Jets and cavities, cavitation, free-streamline theory, water-entry problems, airfoil and hydrofoil theory, sloshing
70E99 Dynamics of a rigid body and of multibody systems
Full Text: DOI
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