新一代化学品船安全防护技术研究

根据IMO关于国际散装运输危险化学品船舶结构和设备规范,针对化学品船高温货品运输的特殊要求,设计了化学品船货品温度监控系统.系统采用了DCS结构、PLC控制技术和双循环系统.该温度监控系统可以解决危险化学品运输和装卸的安全防护问题,是对新一代化学品船关键技术的有益探索.     

用组态软件设计4层电梯监控系统

简要分析了电梯监控系统的组成，详细介绍利用PLC实现对四层电梯的运行控制，并采用组态王软件实现电梯监控系统的设计，组态监控系统与PLC控制系统进行实时数据交换，在组态监控画面上能实时反映电梯的运行状态，并能通过监控画面控制电梯运行状态，从而实现对电梯运行状态的双向控制。     

大型复合驱动耙吸挖泥船集成监控系统设计与实现

针对大型复合驱动耙吸挖泥船的特点和控制功能需求,提出了大型复合驱动耙吸挖泥船集成控制系统的总体设计方案。在硬件配置上,系统上层采用由服务器和客户机组成的以太网,下层采用西门子PLC组成控制网络,实现对底层设备的监控。在软件上,上层计算机监控软件采用vc＋＋开发的面向对象的监控软件,实现上层的监控管理功能;PLC控制程序采用西门子STEP7编写的控制程序,实现了对全船设备的监控。该集成监控系统方案已成功应用于国内某舱容超过10000m3的大型复合驱动耙吸挖泥船,集成监控系统总体运行稳定,满足船舶的控制功能要求。     

基于管道水力提升式采矿系统的深海采矿船总体设计研究

在分析目前国际主流管道水力提升式深海采矿系统的组成和采矿作业工程实际需求的基础上,对深海采矿船(水面支持系统)的主要功能、系统配备和布置特点进行研究。结合工程案例分析,提出商业化深海采矿船总体设计要求和发展趋势。通过研究,为将来商业性、标准化深海采矿船总体设计提供参考。     

基于PLC的货舱进水报警控制系统的设计与实现

基于PLC与网络通讯等技术对货舱进水报警控制系统进行架构,通过使用RS485通讯技术建设系统网络,同时恰当的运用PLC语言和组态软件的可操作性和实用性,从而构建了一个操作便捷、方便实用、符合用户要求的货舱进水报警控制应用系统,实现了监控货舱进水情况的系统化。     

中小型LNG动力船安保系统的设计

基于无线接入技术,开展了中小型LNG新能源动力船安保监测及控制系统的研究与设计。该系统主要应用于柴油-LNG双燃料动力船,可以实现对所涉及到的监测点数据的采集,并通过可编程逻辑控制器PLC、GPRS无线通讯模块进行集中处理,输出并控制各个气体燃料阀组,确保各个双燃料发动机的安全运行,同时还可以通过无线网络实现远程监控、远程系统维修,较好地发挥出船舶运行的安全性和经济性。     

基于PLC的新型冷藏库集装箱温控系统设计

为了提高特殊医药制品的运输质量，设计开发基于PLC的新型冷藏库集装箱温控系统。上位机利用VB软件编程设计人机界面，可在线监控系统运行；通过串口与PLC通信，控制主副温区温控设备的启停，实现对温度的精确控制。实践证明，该系统符合设计指标要求，具有结构简单和实用性强的特点。     

深海采矿船存储转运系统关键技术研究

针对深海采矿船存储转运系统设备在远海特殊环境下作业需面对的特殊问题,通过对输送系统设备现状的分析,结合深海采矿船存储转运系统的工作流程,对舱内矿物合理布矿、水密隔舱的安全性、舱型对设备选型的影响等关键技术进行研究,为深海采矿船存储转运系统的研发提供设计基础,并提出了适合未来深海采矿的智能化存储转运系统成套技术的发展展望。     

基于PLC控制的船舶电力监控系统分析

在船舶电力监控系统中采用智能化的PLC监控方案,能够显著提升电力系统的安全性能,同时有利于改善船员的劳动强度,避免了人为的操作失误。本文首先对船舶电力系统的主要功能进行介绍,并结合实际情况,对电力监控过程中遇到的问题进行分析。然后结合先进的PLC单片机,设计电力监控系统的硬件实现电路,采用该西门子S7000-PLC主控单元的电力监控器,能够将电网中的电压波动范围控制在非常微小的范围内,能够主动根据电气设备的用电需求,对电站的电机进行负载控制,提升电网的稳定性。本文还借助粒子群优化算法,设计软件控制流程,极大简化监控系统的操作复杂程度。     

采矿船舱段有限元强度分析方法研究

采矿船于船舯处有大开口月池贯穿船底用于矿物开采,并且月池前后均匀分布4个矿物储存舱,采矿船兼有矿砂船和钻井船的共性。矿砂船横剖面形式采用方形截面设计,便于舱内矿物海上输入输出转运作业。舱段有限元相对于全船有限元更加方便快捷,航行状态下采矿船内、外载荷与矿砂船类似。因此对于航行状态,该文按照CCS船舶规范,从结构型式、模型范围、工况选取及参数设置等方面考量,并应用CCS-HCSR-TOOLS软件进行舱段有限元强度分析;根据计算分析结果得出采矿船前期设计需要特别关注的区域,为采矿船结构设计和强度分析提供思路和方向。     

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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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.     

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.     

某海港码头的撞损修复

依据码头撞击受损区域调查检测结果,对受损构件提出合理的修复方案,为码头的安全运行提供保障。