宽扁肥大船型波激振动响应研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (18) : 174-180.

论文

宽扁肥大船型波激振动响应研究

王一雯，吴卫国，郑成

作者信息 +

The springing investigation of the wide flat ship type

WANG Yiwen,WU Weiguo ，ZHENG Cheng

Author information +

文章历史 +

摘要

宽扁肥大船型由于其较“柔”的结构特性极易引起高频持续的波激振动响应，同时显著提高了应力幅值水平及循环次数，极大影响了船体结构安全性与可靠性。本文采用非线性水弹性时域理论方法以及模型试验方法对某艘宽扁肥大船型的波激振动响应特性进行了分析。验证了该理论预报方法的正确性及可靠性，并讨论了其高阶波激振动响应对总载荷水平的贡献程度，表明在某些遭遇频率下其波激振动响应较大。在其结构设计及审核阶段，必须考虑其波激振动成分的影响。

Abstract

Since the springing vibration is essential for the consideration of the structural safety, the shallow draft flat ship type can be susceptible to springing with its flexible structural which increase the amplitude and frequency of the responses. Such a hydroelastic vibration should be taken into consideration. This paper aims to analysis the springing effect on the wave induced load on a shallow draft flat ship by theoretical and experimental methods. The comparisons verified the validity of the method of nonlinear hydroelastic simulation. The high orders of the harmonics were also extracted and its characteristics of the springing effects were illustrated. It has to be taken into consideration of the influence of the springing especially in design stage.

导出引用

王一雯，吴卫国，郑成. 宽扁肥大船型波激振动响应研究[J]. 振动与冲击, 2020, 39(18): 174-180

WANG Yiwen,WU Weiguo,ZHENG Cheng. The springing investigation of the wide flat ship type[J]. Journal of Vibration and Shock, 2020, 39(18): 174-180

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