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在建立船舶能耗评价模型基础上,针对能耗影响因素众多,提出了基于知识融合的船舶能耗决策支持系统的研究。以船舶能耗为对象,应用系统辨识理论,建立重点设备能耗模型库;以方法、经验和案例为基础,建立船舶能耗知识库;融合模型库、知识库、关系数据库等多源知识,建立船舶能耗评价与决策支持系统。以实现船舶航运管理、船舶操纵控制、航线设计以及船舶设计等各个过程的决策支持。 相似文献
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为了解决传统船舶最优航线选取模型最优航线选取效率低、精准度差的难题,提出船舶最优航线选取模型研究。依据海上运输环境信息,通过全局航线规划算法对船舶运输安全区域进行划分,以此为基础,采用Dijkstra算法对船舶安全航线进行获取,以得到的船舶安全航线为依据,采用离散点法对船舶最优航线进行选取,实现船舶最优航线选取模型的构建。通过实验结果显示,与传统船舶最优航线选取模型相比较,构建的船舶最优航线选取模型极大地提升了最优航线选取效率与精准度,充分说明构建的船舶最优航线选取模型具备更好的性能。 相似文献
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针对传统船舶物流调度方法物流运营收益较低的问题,提出一种港口码头大型接卸船舶物流调度方法,对大型接卸船舶泊位资源进行配置,通过设置物流调度条件,建立港口码头大型接卸船舶物流调度模型,利用模拟迭代算法对模型进行求解,实现港口码头大型接卸船舶的物流调度,为了证明该方法的物流运营收益较高,将该方法与基于局部最优解的船舶物流调度方法、基于可能域的船舶物流调度方法、基于改善算法的船舶物流调度方法进行对比实验,结果证明该方法的物流运营收益最高,说明该方法最适用于大型接卸船舶的物流调度。 相似文献
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首先介绍了舰艇编队辅助决策系统的功能和组成结构;然后对其多目标威胁判断分系统的功能进行分析,并提供相应的实现方法;最后着重讨论了决策分系统的目标分配和火力分配,同时提供了一套目标分配和火力分配的模型及其算法。 相似文献
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不定期船经营智能决策支持系统 总被引:2,自引:1,他引:1
在分析不定期船经营特点的基础上,将人工智能(AI)和决策支持系统(DSS)结合,提出不定期船经营智能决策支持系统的实现目标、系统基本结构和功能,给出了核心优化模型的表达和系统的知识库与方法库的实现机理。 相似文献
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传统作战辅助决策系统很难满足现代海战的需要,基于多Agent的智能辅助决策系统是辅助决策系统新的发展方向。根据水面舰艇编队对潜作战特点,构建了基于多Agent的对潜作战智能辅助决策系统框架,分析了系统中各模块的功能,重点研究了基于案例推理的Agent推理技术在辅助决策系统中的应用。提出的智能辅助决策系统满足了现代海战对辅助决策系统的要求,具有一定的军事实用价值。 相似文献
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Kjetil Fagerholt Trond A. V. Johnsen Haakon Lindstad 《Maritime Policy and Management》2013,40(5):397-409
The fleet deployment problem is an important planning problem in liner shipping. It deals with optimally assigning voyages to available vessels in the fleet and determining vessel routes and schedules in a way that minimizes costs or maximizes profit. This paper presents a new model for a fleet deployment problem in liner shipping, and we also propose a multi-start local search heuristic to solve the problem. The heuristic has been embedded in a prototype decision support system (DSS) that has been implemented and tested at Höegh Autoliners, a major global provider of ro-ro (roll-on roll-off) vehicle transportation services. The heuristic was able to produce high-quality solutions within a few minutes to a real planning problem with more than 55 vessels and 150 voyages over a planning horizon of 4–6 months. Tests indicated that the solutions suggested by the DSS gave between 2 and 10% improvements compared with solutions from manual planning. What is almost equally important is that using the DSS can ease the planning process. 相似文献
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Onboard decision support systems (DSS) are used to increase the operational safety of ships. Ideally, DSS can estimate future ship responses within a time scale of the order of 1–3 h taking into account speed and course changes, assuming stationary sea states. In principle, the calculations depend on a large amount of operational and environmental parameters, which will be known only in the statistical sense. The present paper suggests a procedure to incorporate random variables and associated uncertainties in the calculations of the outcrossing rates that are the basis for risk-based DSS. The procedure is based on parallel system analysis, and the paper derives and describes the main ideas. The concept is illustrated by an example, where the limit state of a non-linear ship response is considered. The results from the parallel system analysis are in agreement with corresponding Monte Carlo simulations. However, the computational speed of the parallel system analysis proved slower than expected. 相似文献
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Peiman Alipour Sarvari Metin Celik Alp Ustundag Bilal Ervural 《Maritime Policy and Management》2019,46(4):410-435
Planning emergency evacuation operations in a proactive manner in public marine transportation systems is a critical success factor for passenger and crew safety. Despite the fact that there is a growing attention on safety issues for marine transportation systems, providing a real-time decision support for evacuation planning under different emergency conditions has not yet been addressed. In this context, this paper contributes to the related literature by providing a comprehensive methodology including simulation and statistical analysis along with a three-module decision support system (DSS) for ferryboat emergency evacuation. Emergency evacuation and fire environment are simulated via Maritime EXODUS V5.1 and SMARTFIRE V4.3, respectively. The methodology is applied to a real-life Ro-Ro ferry, and the results not only revealed significant factors on emergency evacuation performance, but also demonstrated the validity of the developed decision support system. 相似文献
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鱼雷武器系统论证方案的生成、评价与优选问题是武器装备研制论证中的重要内容。在分析目前鱼雷武器系统论证方案分析方法优长的基础上,构建了鱼雷武器系统多目标优化模型,提出了鱼雷武器系统论证方案的模糊多目标生成方法,并建立了不完全偏好信息的鱼雷武器系统论证方案模糊多目标评价与优选模型。实例分析说明本文模型与方法是有效的,可为鱼雷武器装备研制论证问题提供辅助决策方法和智力支持。 相似文献