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NORWEGIAN EPIC PERFORMANCE

机译：挪威史诗般的表现

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The Norwegian Epic was delivered to NCL by STX France in Saint Nazaire in 2010 after having demonstrated its ability to meet the highest levels of standards in the cruise industry. This paper addresses in detail the performance levels achieved in the key technical areas of naval architecture: hydrodynamics, noise and vibration and stability. In the area of hydrodynamics, the efforts were mostly focused on the reduction of fuel consumption and the improvement of passenger comfort. Exceptional powering performance was achieved despite a high bloc coefficient imposed by the considerable capacity and deadweight of the ship. The hull form was optimized using state of the art CFD numerical codes to reduce resistance, while the integration of the appendages and propellers with careful adaptation of the hull form and ducktail provided excellent hull efficiency. After numerical evaluations and cavitation tests, the propeller design demonstrated very low pressure pulse levels. In the area of noise and vibration, the acoustic noise and vibration levels required in the different cabins and spaces required a detailed analysis of the excitation sources (propellers, diesels, noisy spaces..) as well as the structural response of the ship. The adaptation of the ship structure and the detailed specification of various sound insulation materials and mounting methods have allowed us to meet the specification to the satisfaction of the client and Class. The Norwegian Epic has been designed to meet to SOLAS2009 by anticipation. Explanatory notes not being finalised at that time, an interpretation document was established after discussions with DNV. Special NAPA managers have been developed by the yard to allow the control of the calculation sequences and to analyse the calculation results. This tool allows manages the intermediate stages of the flooding sequence following as close as possible the physical process. Appropriate measures have been taken on each piping or ventilation systems to prevent progressive flooding. These arrangements have been controlled on piping drawings and onboard on the basis of a check-list. Overall, the performance levels achieved in the key areas hydrodynamic, noise and vibration and stability, have raised the comfort and safety standards for cruise vessels. In addition to the many new and exciting features for a cruise vessel, the Norwegian Epic is above all an outstanding ship.
机译：在2010年，2010年，在2010年，挪威史诗是在圣塔瓦伊的STX法国送到NCL之后，在追求巡航行业的最高标准水平的能力之后，于2010年在2010年。本文详细说明了海军架构关键技术领域所取得的性能水平：流体动力学，噪音和振动和稳定性。在流体动力学领域，努力主要集中在减少燃料消耗和乘客舒适性的提高。尽管通过船舶相当大的容量和多重耐心所施加的高集系数，但仍实现了特殊的电力性能。使用现有技术的CFD数值代码进行优化船体形式，以降低电阻，而附件和螺旋桨的整合，仔细适应船体形式和鸭粉提供了优异的船体效率。在数值评估和空化测试之后，螺旋桨设计展示了非常低的压力脉冲水平。在噪音和振动领域，不同舱室和空间所需的声噪声和振动水平需要对船舶的励磁源（螺旋桨，柴油机，嘈杂的空间）进行详细分析以及船舶的结构响应。船舶结构的适应和各种隔音材料和安装方法的详细规格使我们能够满足客户和班级满足的规范。挪威史诗旨在通过预期达到Solas2009。该解释性说明当时未完成，在与DNV讨论后建立解释文件。特殊的纳帕经理已由院子开发，以允许控制计算序列并分析计算结果。此工具允许在尽可能接近的物理过程后管理泛洪序列的中间阶段。在每个管道或通风系统上采取了适当的措施，以防止进步洪水。这些布置已在管道图纸和板载基础上控制。总体而言，在关键领域采用流体动力学，噪音和振动和稳定性实现的性能水平提高了游轮的舒适性和安全标准。除了巡航船的许多新的和令人兴奋的功能之外，挪威史诗在所有优秀的船上。

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