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The effects of geometric detail on the vibratory responses of complex ship-like thin-walled structures

机译：几何细节对复杂船舶薄壁结构振动反应的影响

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摘要

Hydroelasticity of ships and studies in coupled antisymmetric vibrations have become increasingly important with container ships becoming faster and more slender. In this investigation, a ship-like structure is modelled and an equivalent backbone with a U-shaped cross section is designed. Their responses are compared, and limitations of various modelling approaches are discussed. It is demonstrated that scaling of the natural frequencies is insufficient to ensure scaling of the antisymmetric mode shapes and the relevant differences are quantified. Consequently, the backbone model should be viewed as a separate structure for validation purposes rather than a scaled model of a ship.
机译：船舶的水力弹素和耦合反对手振动的研究已经变得越来越重要，集装箱船变得更快，更细长。 在该研究中，设计了一种船舶状结构，并设计了具有U形横截面的等效骨架。 比较它们的回复，讨论了各种建模方法的局限性。 结果证明，自然频率的缩放不足以确保反对称模式形状的缩放，并且量化差异。 因此，应将骨干模型视为用于验证目的而不是船舶的缩放模型的单独结构。

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