非线性盖层技术在间隙和月池共振中的应用

B. Lecuyer, M. Rouault
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引用次数: 0

摘要

本文重点介绍了在Diodore™软件中实现的非线性Lid技术。几个假板被使用并建模为具有自己的自由度的机械结构,能够考虑非线性阻尼。本文首先给出了包含假板结构的多体耐海模型的一般方程,以及相对二次阻尼的表达式。在第二步中,给出了具有间隙和月池的应用实例,展示了多板非线性Lid技术不仅可以呈现活塞模式,还可以呈现自由表面的其他模式的变形。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nonlinear Lid Technique: Application to Gap and Moonpool Resonance
This paper focuses on the implementation of a nonlinear Lid Technique, as done in the software Diodore™. Several dummy plates are used and modelled as mechanical structures with their own degrees of freedom, capable to account for nonlinear damping. The paper describes first the general equations governing the multi-body sea-keeping model including dummy plate structures, and the expression of the relative quadratic damping. In a second step, examples of applications with gap and moonpool are exposed, demonstrating the capability of the nonlinear Lid Technique with multiple plates to render not only the piston mode, but also the other modes of deformation of the free surface.
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