267_add_Added Masses of Ship Structures.pdf - Chapter 6 Added Masses under Elastic Oscillations of Structures and Their Components Here we discuss

267_add_Added Masses of Ship Structures.pdf - Chapter 6...

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Chapter 6 Added Masses under Elastic Oscillations of Structures and Their Components Here we discuss oscillations of the surface of a body immersed in a fluid and com- putation of added masses of the body under such oscillations. 1 Oscillations of this type typically occur as local oscillations of the hull surface. We give examples of computation of added masses in typical model oscillations. 6.1 General Discussion When a system immersed in a fluid oscillates elastically, the added mass depends on whether the system is isolated or represents a part of a larger system because, in the latter case, added masses depend on the behavior of system parts that are neighbor to the system experiencing oscillations: if these parts are stable, then they serve as a solid screen; if they oscillate, this results in additional fluid flow. Publications on the problem of added masses caused by elastic motions of various constructions and their separate parts are sparse. This is because of diversity of hydroelasticity problems, each of which is difficult and customarily needs a separate approach. At the same time, elastic motions of constructions are important in actual engineering.
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