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首页> 外文期刊>Ocean Engineering >Time-domain numerical and segmented model experimental study on ship hydroelastic responses and whipping loads in harsh irregular seaways
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Time-domain numerical and segmented model experimental study on ship hydroelastic responses and whipping loads in harsh irregular seaways

机译：船舶水液响应和鞭打异常船舶潮液响应的时域数值和分段模型试验研究

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摘要

In this paper, wave-induced motions and loads of a bow flare ship advancing in harsh irregular waves are investigated both numerically and experimentally. A 3D time-domain hydroelasticity theory that includes memory-effect function considering Froude-Krylov nonlinearity is developed to predict ship motions, wave loads and slamming loads in long-crested irregular waves. In the hydroelasticity algorithm, the wave memory effects and forward speed effects are addressed by retardation function method to improve the computing efficiency and provide opportunity for short-term statistical analysis of ship responses in irregular waves. In addition, segmented model tank tests are conducted to experimentally investigate the motions and loads of ship sailing in long-crested irregular waves and also validate the numerical results. To further understand the nonlinear wave loads behavior of ship in short-crested waves, large-scale segmented model sea trials are performed in realistic sea waves. The numerical results and experimental results are systemically analyzed and compared using time series, spectral and probability statistical analysis methods.
机译：在本文中，在数值和实验中，在苛刻的不规则波线上推进的波动动作和弓峰舰艇的负载。考虑到Froude-Krylov非线性的3D时域水力弹性理论，包括考虑FRouee-Krylov非线性的记忆效应函数，以预测长冠的不规则波中的船舶运动，波浪荷载和扰动负载。在水力弹性算法中，通过延迟功能方法解决了波动效应和前进速度效应，以提高计算效率，并为不规则波中的船舶反应提供短期统计分析的机会。此外，进行分段模型罐试验以通过实验研究长冠不规则波浪中船舶航行的运动和负载，并验证数值结果。为了进一步了解船舶在短冠波中的非线性波浪行为，大规模分段模型海洋试验在现实的海浪中进行。使用时间序列，光谱和概率统计分析方法系统地分析和比较数值结果和实验结果。

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