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航道是航运发展的基本条件,航道规划方案评价涉及的指标非常多,属于多指标综合评价。通过对层次方法、指标体系、权重、评价标准进行分析,选用层次分析法和模糊综合评价法相结合的评价方法,构建了模糊综合评价模型。该模型具有定量性和离散性,使决策和评价过程变得简便易行,能够为航道规划提供一种合理的优选方案。 相似文献
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针对舰船动力系统方案评估的不确定性,提出一种新的舰船动力系统方案评估方法。首先建立舰船动力系统方案评估指标,然后利用区间层次分析法确定舰船动力系统方案评估指标权重。在此基础上,结合区间数理论建立基于区间数可能度的舰船动力系统方案评估模型。最后结合实例对舰船动力系统方案进行评估,验证该方法的可行性和有效性。 相似文献
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层次分析法是用来优先航道整治方案的系统工程方法。文中通过介绍层次分析法的基本原理和计算方法,建立了航道整治方案优选模型,并通过实例的应用证明了其可行性。 相似文献
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[目的]为解决舰船中水回用方案优选过程中决策影响因素多,且因素无法完全被量化和排序的问题,有必要建立科学合理的方案优选评估模型.[方法]基于灰色层次分析法及德尔菲法构建舰船中水回用方案评价指标体系的层次化结构,采用白化权函数的灰色评估方法对各评估要素进行量化,开展不同方案的综合评估.[结果]分析及计算结果表明,采用灰色... 相似文献
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Po-Hsing Tseng 《Maritime Policy and Management》2018,45(4):422-438
As Arctic sea ice shrinks due to global warming, the Northern Sea Route (NSR) and the Northwest Passage (NWP) offer a substantial reduction in shipping distance between Asia and the European and North American continents, respectively, when compared to conventional routes through the Suez and Panama Canals. However, Arctic shipping routes have many problems associated with their use. The main objective of this paper is to identify the key criteria that influence the decisions of shipping operators with respect to using Arctic shipping routes. A multi-criteria decision-making methodology, the Fuzzy Analytic Hierarchy Process, is applied to rank four potential categories of criteria (‘economic’, ‘technical’, ‘political’ and ‘safety’ factors) and their sub-criteria.
The results of the analysis suggest that, on aggregate, ‘economic’ is the most important category of influential factors, followed by ‘safety’, ‘technical’ and ‘political’ factors. The paper concludes, however, that the most influential specific sub-criteria relate to risks that lie mainly within the ‘safety’ and ‘political’ domains and that, especially in combination, these overwhelm the importance which is attached to ‘economic’ factors such as reduced fuel use. Finally, the implications of these findings for the future development of Arctic shipping are addressed at a strategic level. 相似文献
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Maritime labour convention (MLC), adopted by International Labour Organization in 2006, is one of the latest contemporary issues in the maritime industry. Since the convention entered into force after August 2013, maritime administrations and ship management companies have great responsibilities to control and verify the socio-technical requirements within the shipboard environment. The convention principally organized along with several key considerations such as minimum requirements for seafarers to work on-board ships, conditions of employment, accommodation, recreational facilities, health protection, medical care, welfare and social security protection. At this insight, the compliance and enforcement matters are another concern to fulfil the requirements. This paper provides a model-based approach integrating balanced scorecard (BSC) with analytic hierarchy process (AHP) to evaluate compliance with the MLC requirements at the operational level. The research is expected to provide original contributions to monitor the MLC 2006 compliances level in ship fleet operation and management. 相似文献
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码头工程投资成本高,施工条件复杂、周期长,在项目实施的整个过程中伴随着难以预计的造价风险.笔者基于以往研究的基础上,运用层次分析法针对某港口码头工程建立成本风险评估指标体系及计算指标权重后,以工程项目各阶段为研究对象制定了造价风险控制措施和控制流程. 相似文献
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Process planning for a hull structure defines the assembly sequence of the hull block. Although this activity is very important
because the working strategy defines the production costs, to date it has been done manually. To raise the efficiency of this
process, we developed a practical computer-aided process planning system. It has been developed using deliverables obtained
from advanced computer integrated manufacturing system (CIM; ACIM) for shipbuilding projects sponsored by the Ship and Ocean
Foundation (SOF). The system has a knowledge base which contains the know-how of skilled designers as well as design practices,
and allows the assembly sequence of hull parts and intermediate products to be defined automatically. The system has been
integrated with the shipyard CAD system MATES, and put to practical use.
Received: August 19, 2002 / Accepted: November 25, 2002
Address correspondence to: Y. Sasaki (yuuichi_sasaki@mhi.co.jp)
Updated from the Japanese original, which won the 2002 SNAJ prize (J Soc Nav Archit Jpn 2001;189:309–315) 相似文献
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基于认知系统工程分类方法,应用层次分析法构建了船舶机损事故人误原因因素结构模型,将成对比较矩阵的特征向量作为因素的权重,确定相关因素的影响力排序。给出了一种识别船舶机损事故中人误原因主要影响因素的实用方法,并针对性地提出相应预防措施,减少船舶机损事故提供可靠的理论依据。 相似文献
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通过山东某集装箱码头港口规划的一个实际仿真项目,分析了应用离散事件仿真方法辅助集装箱堆场大门系统规划的过程和方法.结果表明仿真方法能够较简单公式方法给出更加丰富的大门规划支持信息,从而有助于做出更加规范合理的大门规划决策. 相似文献
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文章介绍了换新舵系的安装工艺,着重论述了船舶舵系海损严重造成无基准的情况下,通过空心假轴进行舵系拉线,确保法兰座的定位,为整个舵系的安装提供了重要依据。 相似文献