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首页> 外文期刊>Journal of Ship Research >A Method for the Prediction of Extreme Ship Responses Using Design-Event Theory and Computational Fluid Dynamics
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A Method for the Prediction of Extreme Ship Responses Using Design-Event Theory and Computational Fluid Dynamics

机译:一种使用设计事件理论和计算流体动力学预测极端船舶响应的方法

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摘要

The design of a naval vessel requires accurate estimation of the extreme loads and motions that it will experience during its lifetime. Operation in large seaways in which the ship-wave interaction is highly nonlinear and transient leads to design events such as maximum internal loads due to global wave bending, local slamming loads, extreme roll, combinations of the global wave bending and local slamming, and many others. In this article, a method is presented that allows for nonlinear analysis to be used to predict events with user-specified rareness. The core of the method combines probability, frequency, and time-domain analyses to generate short time-window sea environments that lead to extreme dynamical events. The Office of Naval Research Tumblehome geometry is analyzed for the extreme roll angle when advancing in stern quartering irregular seas.
机译:海军船舶的设计需要准确地估计它在其寿命期间会经历的极端负荷和运动。在大型海道中的操作,其中船波相互作用是高度非线性的,瞬态导致设计事件,例如由于全球波弯曲,局部恐怖负载,极端滚动,全局波弯曲和局部猛击的组合,以及许多人其他。在本文中,提出了一种方法,其允许非线性分析用于预测用户指定的rarence的事件。该方法的核心结合了概率,频率和时域分析,以产生导致极端动态事件的短时间窗口海环境。在船尾四季不规则海洋中推进时,对海军研究滚筒组几何形状进行分析。

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