软刚臂单点系泊装置监测预报系统的设计及实现

为进一步保障浮式生产储油装置(FPSO)的作业安全,通过海洋环境条件测量、FPSO运动和单点系泊系统(SPM)状态监测以及理论计算等手段,实现了软刚臂单点系泊监测预报系统的方案设计,并成功应用于渤海油田。经现场应用验证,该系统能够实现对FPSO及SPM运行情况的监测,为作业者提供FPSO操作指导及预警,有效的降低了作业风险。     

基于抛石防波堤的化工管廊沉降自动化监测方法

为解决基于抛石防波堤的化工管廊沉降问题,提出一套兼具可实施性、经济性和可靠性的系统解决方案。分析目前我国沿海地区化工码头基于抛石防波提的管廊沉降现状;介绍2种沉降监测手段相结合的方式,分别为压差式变形测量和GNSS定位测量;搭建研究系统总体架构,系统分层包括监测传感子系统、数据采集子系统、数据传输子系统、数据库子系统、数据处理和控制子系统、安全评价和预警子系统,通过各层相互协调,同时根据沉降自动化监测和管架调节需求实现系统各项功能,真正达到自动化监测管廊沉降并及时干预的目的,保证管廊正常运行作业。     

实用性台风生成中期展望预警信息快速查询系统

针对目前我国专供航运和海上作业安全相关管理人员使用的台风生成中期展望预警服务产品较为缺乏的状况。基于对台风监测预警相关概念和航运企业对初生台风监测预警需求的分析,提出一种综合利用国外气象机构发布的台风生成预报信息,供使用者对西北太平洋台风生成中期展望监测预警信息进行快速查询的系统。该系统采用现代计算机技术,通过自动定时下载和图文识别等技术,对专业台风预报网站上的台风生成中期展望预警信息结果进行必要的简化、加工和集成,用动态可视化的方式呈现给航运安全相关管理人员。结果表明：系统可显示热带气旋10 d及16 d生成中期展望信息,是航运和海上作业安全相关管理人员监测和提前了解台风生成动向的一种新型便捷的手段。     

基于激光扫描的无人堆料控制系统

<正>国内包括黄骅港在内的煤炭码头的堆料机操作一般都是采用人工操作方式实现的,无法实行自动作业的原因主要是煤堆的轮廓识别和料位高度检测很难解决。堆料机具体工作流程如下:司机根据中控指令,将堆料机开至指定位置;司机将堆料机大臂回转至堆场中间位置;根据场垛高低将堆料机大臂俯仰至合适位置;启动悬臂皮带机开始堆料作业;司机观察料堆与大臂的距离小于1.5m时;将大臂继续抬高;当大臂高度大于18m时,堆料机向堆场空侧行走3～4m,继续作业直至作业完毕。在上述的作业过程中,从开始作业到作业完     

南海海区航标遥测遥控系统完善与优化

为解决航标遥测遥控系统数据准确、终端在线、监测预警、资产管理和系统平台等5个方面存在的问题,实现对南海航标的有效监测,保障船舶安全航行,对系统需求进行分析,并对其进行完善和优化。从前端通信设计的角度解决数据准确、终端在线方面的问题;利用系统后台运算解决监测预警方面的问题;通过设计实现航标、终端和卡号的自动识别与绑定,解决资产管理方面的问题;对系统结构与功能等进行设计,解决系统平台方面的问题。完善和优化后的系统可有效解决这些问题,在南海海区全面应用该系统的结果表明,该系统的使用能有效保障南海水域船舶的航行安全。     

导航控制算法在船舶避碰中的应用

随着海洋运输业的飞速发展,如何避免大型船舶之间的碰撞事关整个海域航运的安全。目前船舶依靠导航系统定位航行,在传统的基于导航的船舶避免碰撞机制中,主要由船员进行船舶碰撞的危险性估计、避免碰撞的决策及具体操作实施,很难避免由人为错误估计、决策而造成的灾难。本文在研究现有船舶导航系统、避免碰撞的决策机制基础上,利用AIS(自动识别系统)为平台,设计一种基于导航控制算法的自动化船舶碰撞避免机制。     

基于中继浮标实现水下运动目标大范围监测方法研究

由于安全性能及水声传播距离限制,传统的长基线系统对水下运动目标无法达到大范围的进行监测。引入中继浮标与长基线系统潜标相结合对水下目标进行导航定位,解决了大范围监测及水下目标安全机动的问题。同时设计了系统的节点分配,并探讨了通信的方式,海试证明方法可靠,有较大的工程价值。     

集装箱桥吊仿真训练系统中碰撞模型的建立与实现

碰撞模型是仿真系统中重要的也是关键的一部分，集装箱桥吊的高速化对碰撞检测的实时性提出了很高的要求，同时吊具模型的复杂性与集装箱桥吊装卸过程的特点增加了碰撞检测的难度。本文应用简化、高效的碰撞线检测方法较好地解决了桥吊仿真训练系统中的碰撞问题。     

基于ExcelVBA技术制作电子水准仪观测手簿

大坝安全监测外观水准测量普遍采用了高精度、高效率电子水准仪,本文在分析索佳电子水准仪SDL1X数据格式基础上,利用Excel VBA技术设计并编制了观测手簿程序,实现了水准数据处理自动化,提高了作业效率。     

船舱巡检机器人电力故障自动化监测系统研究

现有船舱电力故障监测系统由于自适应判断性能差,存在着监测自动化程度低的问题,为此提出船舱巡检机器人电力故障自动化监测系统研究。系统硬件选取包括巡检机器人监测元件选取与处理器选型;系统软件设计包括巡检机器人操纵模块、数据库模块以及电力故障自动化监测模块。通过上述系统硬件与软件的设计,实现船舱巡检机器人电力故障自动化监测系统的运行。通过仿真对比实验表明:与现有代表系统相比较,设计船舱巡检机器人电力故障自动化监测系统的电力数据传输速度较快、电力故障元件定位精确性较高,说明设计系统监测自动化程度高,具备更好的应用前景。     

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。     

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）.     

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.     

桥梁防撞设施物理模型试验

物理模型试验是预报防撞设施所受撞击力及优化设计方案的主要方法之一。结合杭州湾大桥柔性防撞设施及东海大桥独立式防撞体设计方案,阐述了船—防撞体撞击试验的基本原理、方法、试验方案及相关试验结果。提出了柔性防撞系统的优化方案。试验结果表明,该方案经济有效,可供预报类似桥梁防撞设施撞击力时参考。     

印尼某电厂码头水工建筑物设计

印尼某电厂项目码头水工建筑物包括码头、防波堤和护岸等主要组成部分。在该项目水工建筑物的设计过程中,综合考虑当地的自然条件、施工能力和材料来源等因素,不断优化结构选型和结构断面。根据不同使用要求,护岸分别采用直立式和斜坡式2种结构型式,推荐的设计方案节省投资、施工方便,可供同类工程设计参考。     

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.     

开放式数据挖掘系统模型

目前国内已经出现了少量的数据挖掘相关产品。国内数据挖掘软件无论从数量还是质量上比较，都与国外软件存在着较大的差距。随着数据仓库技术的普及，数据挖掘应用的需求越来越强烈，如何缩短这种差距，研发数据挖掘软件产品成为国内业界的一个重要问题。通过引用目前国际通用数据挖掘标准技术来构建开放式的数据挖掘系统模型，该系统模型从可扩展性、可重用性、易用性等方面得到了加强。