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AFFORDABILITY, SHIP IMPACT AND SHOCK RESPONSE IMPLICATIONS OF SIMPLER WARSHIP STRUCTURAL STYLES

机译:SIMPLER作战结构样式的可承受性,船舶冲击和冲击响应含义

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This paper describes a comparative study between two series of variant structural designs for the NFR-90 frigate with simplified structural styles. One series uses a reduced number of stiffeners, resulting in heavier scantlings overall. The other uses cheaper stiffener profiles than the traditional long-stalk tee bars. Structures of equivalent strength were developed for each variant, which were then subjected to a simulated underwater explosion attack. The resulting internal acceleration environment in each model was assessed and compared. The cost saving over the traditional naval structural practice offered by each variant was also estimated, allowing for a comparison of cost and performance impact of each variant. The paper concludes that cheaper stiffeners offer limited cost savings for a significant performance impact, while reduced numbers of stiffeners offer more significant cost savings and potentially reduced peak internal accelerations in response to underwater shock.
机译:本文介绍了NFR-90护卫舰具有简化结构样式的两个系列变体结构设计之间的比较研究。一个系列使用的加强筋数量减少,从而导致整体尺寸更大。另一种是使用比传统长柄三通杆便宜的加劲肋型材。为每个变体开发了强度相等的结构,然后对它们进行了模拟的水下爆炸攻击。评估并比较了每个模型中产生的内部加速环境。还估计了每个变体所提供的与传统海军结构实践相比所节省的成本,从而可以对每个变体的成本和性能影响进行比较。本文的结论是,较便宜的加劲肋可提供有限的成本节省,从而显着影响性能,而减少加劲肋的数量可提供更显着的成本节省,并可能降低响应水下冲击的峰值内部加速度。

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