Hydrodynamic analysis of multi-body floating system in waves: from rigid to flexible structures

分类： 物理学 >> 普通物理:统计和量子力学,量子信息等 提交时间： 2017-06-09

Zhang Xiantao Lu Da Sun Yonggang Gao Yun

摘要： The hydrodynamic problem for multi-body systems in waves has complexity in both wave structure interaction and coupled dynamics with interconnection. A consistent approach is developed for calculating the dynamic response of multi-body floating systems. This method is based on multi-rigid-body hydrodynamics and Euler-beam bending theory and can be used to deal with rigid or flexible multi-body floating systems in both frequency and time domain. Within the framework of this consistent approach, a stiffness approximation method is proposed to calculate the natural frequency and corresponding oscillation mode of a hinged multi-module structure. This is significant for both traditional multi-body floating system (for the purpose of structural safety) and wave energy converters (for the purpose of power efficiency).

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