依据MBD的LNG船分段虚拟建造仿真技术

依据基于模型定义（Model Based Definition，MBD）的船舶虚拟建造技术是对船舶设计技术的创新。通过选取液化天然气（Liquefied Natural Gas，LNG）船船体分段建造的重要工艺环节，基于统一的三维模型，根据船舶建造工艺流程，在实船建造前开展基于三维模型的虚拟仿真验证，动态分析船舶中间产品的可制造性以优化工艺设计，打通船舶产品设计（Ship Product Design，SPD）三维模型在三维完整性建模设计、虚拟仿真、生产中的数据链路，形成基于三维模型的产品设计、工艺设计和建造仿真技术方案，可有效降低现场返工率、提升船舶建造效率和质量。     

中小型船舶分段无余量建造工艺实践

分段无余量建造工艺是船舶建造工程的一项重要工艺技术。中小型船舶由于其型线变化率大的特殊性，一直难以应用此项技术。本文以分段建造各施工阶段应重点考虑的结构补偿为出发点，围绕补偿量的确定，简单介绍在中小型船舶上应用分段无余量建造工艺。     

中小型船厂焊接工艺的认可与实施

随着我国船舶工业的快速发展,船舶建造向大型化、专业化方向发展;与此同时,民营中小型船厂也蓬勃发展并承担了大量的船舶建造任务.但在船舶建造过程中,这些船厂往往由于缺乏焊接工程技术人员,或对造船过程中焊接工艺的要求不太明确,严重影响到船舶的建造质量.作者从自身的实践经验出发,阐述了地方船舶检验部门对中小型船厂进行焊接工艺认...     

建造船舶建造检验要点分析

建造船舶检验是船舶检验机构的一项重要业务,其目的是确保建造船舶按批准的图纸进行建造,船舶结构满足公约、规范、标准等要求,船用设备、材料、工艺均符合要求,持证的船用产品经验证合格,经过船舶试验,满足要求。针对建造船舶检验阶段划分,结合最新的关于船舶建造要求的公约法规的知识、船舶建造工艺、设备安装工艺以及金属加工工艺等多方面要求对建造检验进行阶段管理,分析了建造船舶各阶段检验要点。     

内河船舶船体建造检验节点的控制策略分析

造船业随着改革开放快速发展,造船和检验的技术和工艺不断更新。为了确保船舶的整体质量,需要对内河船舶船体船体进行建造检验,以确保船舶的建造品质。内河船舶船体的建造环节复杂、工序精细、工艺要求高,对每一个建造环节进行检验可以充分确保船体的质量。本文根据船舶船体建造检验的经验,对内河船舶船体建造的一些关键检验节点的控制措施进行分析,以供工程技术人员参考。     

浅谈内河小型船舶焊接工艺施工组织设计与应用

内河小型船舶大多数是在中小型船厂建造，存在焊接技术缺乏，对焊接工艺要求不明确，船舶建造质量低劣等问题，影响整个船舶建造质量。本文针对小型船舶手工电焊弧接施工组织设计与应用作一介绍，以供参考。     

船舶复合材料应用现状及发展趋势

复合材料因其显著的性能特点,在船舶领域具有广阔的应用空间,随着建造工艺的进步和材料性能的提升,船舶复合材料应用范围和比重逐步增大。研究船舶复合材料的结构属性、建造工艺和应用优势,梳理国内外船舶复合材料应用现状,分析船舶复合材料应用发展方向,研判船舶复合材料发展趋势,为我国船舶复合材料的发展提供参考方向。     

船舶管路安装工艺减振试验研究

船舶管路系统振动噪声控制问题极大影响船舶的声学性能，以某型船海水冷却管路为研究对象，对不同安装工艺参数下管路的振动响应进行试验研究，分析管内介质流速、管支架间距、弯管弯曲半径、抬升管抬升角度等多组工艺参数对振动传递的影响。结果表明：管支架间距、管支架刚度等对振动传递影响较大，弯管弯曲半径、抬升管抬升角度对管子后端的振动也有明显影响。获取的试验数据不仅为该型船动力管路的减振安装提供了工艺支撑，还为其他船型动力管路系统安装提供了低噪声建造工艺实施的参考，也为管路振动的理论研究提供了数据支撑。     

船舶工艺孔的设计

工艺孔设计是船体生产设计基本内容之一。开设工艺孔是船舶建造过程中一项重要的工艺措施，其目的是为了改善施工环境，缩短建造周期，保证生产安全和建造质量。介绍了船舶临时工艺孔的设计依据、一般原则、设置各类工艺孔的要求和常用方法以及设计时的注意事项和安全措施，供船厂进行工艺孔设计时参考。     

万吨级油船应用总段建造工艺

船体总段建造工艺可以产生可观的技术和经济效益,中小型船舶建造时已广泛采用.本文对万吨级船舶实施总段建造工艺进行了可行性分析,并介绍了63000吨级油船采用总段建造的具体工艺.     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to:·meet and present advances in technology and its scientific support;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

Errata

正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to: meet and present advances in technology and its scientific support;     

联合作战计划和执行系统

全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划：时间不限的精密预案计划生成作战计划、方案计划或职能计划；时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础，加速应付危机的能力。     

Recent progress on wave induced loading measurements in warships

Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

Eastbound or westbound ?

In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama？
The answer is China South Port Group （Hong Kong, Shenzhen and Guangzhou）.     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.