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| 1 | 轮印载荷下多跨梁最危险工况分析与优化显示文摘多种轮印载荷工况作用于船舶多跨梁结构时,找到最危险工况并进行结构优化设计,对于船舶结构的安全校核与降低结构重量有重要意义。提出一种将遗传算法与有限元方法相结合,以多跨梁上轮印载荷的布置位置为设计变量,载荷间的间距大小为约束条件,每一跨的最大弯矩和最大剪力为目标函数,求解任意多跨梁上有多种轮印载荷作用时最危险工况的方法,并根据最危险工况分析的结果调整支座位置,降低多跨梁最大弯矩,并进一步进行构件尺寸的优化设计。计算结果表明:基于提出的多跨梁优化设计方法,能找到每一跨应力满足强度要求的剖面积最小的构件尺寸,且构件尺寸的变化对最危险工况时的最大弯矩与轮印载荷位置几乎没有影响。调整支座位置的优化方案,与支座初始位置方案相比,最危险工况时的最大弯矩降低22.64%,重量降低10.55%,因此支座位置的调整,能有效降低最危险工况时的最大弯矩,从而达到降低多跨梁重量的目的。 | 康杰豪 贺远松 谭开忍 贺梦豪 刘均 程远胜 | 2016 | 中国舰船研究2016，11，6： | 4 |
| 2 | 国际海事组织船舶能效提案及其影响综述显示文摘This paper presents a review of the different International Maritime Organization(IMO)initiatives to improve the ship energy efficiency of new and existing ships,which is considered one of the essential tasks to reduce Greenhouse Gas(GHG)in the maritime industry.First,the IMO effort and initiatives and the different indices suggested by the IMO are presented till the last version of the Marine Environment Protection Committee(MEPC),showing the effect of different technologies on reducing the level of indices and the suggested improvement of the terms of indices in the next years.Second,the short-and long-term strategies suggested by the IMO are presented,showing that the effect of indices will be noticed in the short term,while the new fuels will show a significant improvement in the long term.Finally,several examples of cooperation between the different organizations are presented,showing that transferring knowledge and experience will significantly impact the maritime industry and thus lead to the concept of green ships in the near future.This paper shows that the combination of different solutions,the cooperation between stakeholders and the sharing of the data and information are important to achieve the required goal. | M.Tadros M.Ventura C.Guedes Soares | 2023 | 哈尔滨工程大学学报(英文版)2023，22，4： | 0 |
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