基于三维频域势流理论,采用数值模拟方法计算了具有小间隙的圆筒形和箱形浮体、并列箱形等多浮体系统的波浪力和水动力相互作用的附加质量和阻尼系数等,分析了间隙对多浮体系统的水动力性能的影响.数值计算结果表明,无论是波浪力还是浮体间相互作用的水动力系数在某些频率上都存在着强烈的共振现象,共振发生的频率基本出现在波数kL=nπ(n=1,2,…,∞)附近.
The influence on hydrodynamics of multiple floating structures with small gap in between was examined by 3D numerical simulation. The computational results show that both the wave forces and hydrodynamic coefficients have strong and complicate interactions at some special resonant wave numbers. The resonant wave number appears around kL=nπ(n=1,2,…,∞) with a corresponding frequency shift.