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《船舶标准化工程师》2017,(5)
基于目前许多船舶企业虚拟生产建造现状,文章对某船实例进行舾装设备模型数值化建模研究应用,采用CADDS5虚拟仿真软件,通过对其参数化建模二次开发,构建专业的舾装设备模块,同时结合实船,考虑舾装件的独特特性,设计船舶舾装设备三维模型,并将其参数化,利用SYBASE数据库存放数值模型,实现舾装设计参数与设计研发CADDS5舾装功能模块匹配链接。为船舶设计人员舾装件的设计、选型研发提供依据,同时提高效率。 相似文献
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研究融合视觉信息的船舶舾装数字化三维辅助设计,以改善模型设计效果。基于双目视觉原理获取船舶舾装设备目标多视角图像,在对其预处理的基础上采集三维空间数据,与舾装设备图纸、几何尺寸信息等作为依据,利用FORAN软件构建舾装设备参数化三维模型,并确定模型安装基准点。采用混合图元全自由度渲染法对船舶舾装数字化三维设计结果进行处理,提升模型整体设计效果。实验结果表明:该方法可获取舾装设备多视角图像,构建舾装设备三维模型并标注模型参数信息;实现船舶机舱底部区域舾装单元的布局,渲染后的舾装数字化三维设计色彩对比度强烈、饱和度好,视觉效果突出。 相似文献
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为适应一体化设计对基于统一数据模型完成三维全过程设计的需求,改善行业设计标准体系存在的不足,提出一种满足一体化设计需求的新的标准部件库建设方案。将部件划分为原材料、通用标准件、标准舾装件、设备类和自制件等5类,将AVEVAMarine软件的Paragon模块作为数据库,对标准部件库的基本构架模型、内容模型和使用模型进行开发,并对标准部件库的应用方法进行介绍。研究成果可为船舶与海洋工程一体化设计标准部件库建设工作提供一定参考。 相似文献
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三维技术在船舶结构生产设计中的应用 总被引:2,自引:1,他引:1
以某滚装型船舶首门、首总段结构整体建造工艺设计过程为例,结合应用CADDS5三维设计软件和相关的软件系统进行该船首门、首总段结构三维模型设计、通道装置间的运动分析仿真、首门装配工艺数据计算以及工艺工装设计方面的应用,介绍三维设计技术在复杂船舶结构生产设计中的应用方法。 相似文献
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价值观是指人们对价值的性质标准、构成和评价的基本看法和态度,是指导人的行为的一系列基本准则和信条。构建海事核心价值观是时代发展的要求,更是海事自身发展的需要。 相似文献
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This chapter presents a summary of the findings of the workshop on ‘Analytical and Institutional Methods and Frameworks’. The paper discusses the nature of the analytical methods used in the papers presented and the purposes for which they were employed, which were generally to either assist in the planning and operation of public transport or to monitor the efficiency and effectiveness of transport services. Subsequent sections examine issues related to data collection and management, and the more general issue of institutional arrangements. Policy and research agendas needed to support further consideration of the subject are then identified. 相似文献
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介绍青藏高原多年冻土的冻融特性,并结合我局在青藏铁路十二标段的具体施工,分析了冻土的冻融特性及具体防止措施. 相似文献
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Geoffrey Wood 《Maritime Policy and Management》2004,31(2):157-171
This paper explores the current state of coastal and inland shipping in Tanzania. It provides an overview of the state of ports and shipping in Tanzania, and the reasons underlying the present crisis of competitiveness in terms of both global pressures and national and regional dynamics. Problems of competitiveness are at least partially due to under-investment, management failures, skills shortfalls and difficulties in interfacing with the railway network. Less easy to resolve structural problems include the great imbalance between imports and exports, heightened regional competition and ongoing political instability in the Great Lakes region. 相似文献
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风量与风压的简易测量及应用 总被引:2,自引:0,他引:2
锅炉正常燃烧必须有充足的风量,当锅炉鼓风或引风不足将导致锅炉效果恶化,锅炉出力、热效应率明显下降。结合工程实例,介绍结托管简揭测试鼓、引风系统各部分风压、风量,帮助判断分析工程实际问题的简便方法。 相似文献
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Elizabeth A. Wilman 《Coastal management》2013,41(3):211-230
As the controversy over Outer Continental Shelf (OCS) oil and gas leasing continues, with environmentalists and fishermen seeking to block or delay leasing decisions that they think will adversely affect their interests, the need for better estimates of the environmental costs associated with OCS development becomes increasingly apparent. Although high degrees of precision in such estimates may never be economic, let alone feasible, better knowledge would reduce the uncertainty surrounding the magnitude of such costs, and would make it easier to come to grips with the problem and reduce, if not resolve, the controversy. 相似文献