自动化轨道式龙门起重机定位测量系统

自动化集装箱码头通过定位测量系统,测量堆场内所有货物及装卸设备在堆场坐标系统中的位置,实现岸桥、起重机、搬运小车的自动化控制。以轨道式龙门起重机为例,从大车机构定位、小车机构定位、起升机构定位、吊具位置检测、集装箱位置检测等方面阐述了定位系统的功能及作用,为自动化集装箱码头的建设提供参考。     

自动化集装箱码头双小车岸桥主小车作业效率优化

正自动化已成为当今集装箱码头发展的新趋势,其在很大程度上能够提高码头作业效率;但我国自动化集装箱码头发展还处于起步阶段,进一步提高作业效率仍是首要任务。作为集装箱码头重要的装卸设备之一,岸桥的作业效率直接决定整个码头的作业效率。上海港洋山深水港区四期自动化集装箱码头(以下简称"洋山四期码头")配备10台双小车岸桥。在双小车岸桥作业过程中,门架小车自动运     

基于深度学习的吊具全自动抓箱定位系统

在港口自动化作业中,起重机吊具抓放集装箱的过程需要准确定位集装箱和吊具的相对位置,进而可以将数据反馈给控制系统以实现自动对位功能。通过在吊具的四个角向外延伸外侧安装吊具摄像头,以实现对集装箱锁孔的准确识别及定位,通过集装箱的锁孔位置可以较为准确地计算出集装箱中心点相对吊具中心点的在x（大车方向）,y（小车方向）方向上的偏移量及偏航角.。实验结果表明,对于20尺的集装箱和吊具大、小车定位误差为10mm,偏航角误差为±02°,基本可以满足对实际使用的需求。     

集装箱岸桥吊具自动对箱系统

为实现集装箱码头的自动化作业,采用目标识别传感器系统检测集装箱与吊具之间的偏差,实现岸桥自动对箱。通过机器视觉产品,将摄取目标转换成图像信息和数据信息,在传给专用处理模块进行处理后获取目标的特征,并根据目标特征进行运动控制。测试结果表明:该系统能够快速、准确地实现吊具自动对箱操作。     

港口41T-32M轻型岸桥单双箱吊具兼容性改造

宁波舟山港股份有限公司北仑矿石码头分公司(以下简称"北仑矿石码头")的惠生41T-32M轻型岸桥配备振华单箱吊具,采用点对点控制集装箱吊具的形式,一次可起吊1个20英尺集装箱或40英尺集装箱.随着北仑矿石码头集装箱业务的发展,码头对集装箱装卸效率提出更高要求.双箱作业岸桥的作业效率比单箱作业岸桥提升20％以上;因此,有必要对北仑矿石码头的单箱作业轻型岸桥实施双箱作业技术改造,以提升设备作业效率.振华液压双箱吊具性能优良,若能用于轻型岸桥,完全可以满足作业需要.北仑矿石码头41T-32M轻型岸桥单双箱吊具兼容性改造项目应用控制器局域网络(controller area network,CAN)总线控制岸桥吊具,使用9芯插头替代48芯插头实现双箱吊具功能,同时保留48芯插头点对点控制功能,实现北仑港区岸桥与龙门吊吊具通用.     

远控岸边集装箱起重机定位技术

介绍了岸边集装箱起重机的小车定位、大车定位以及负载定位检测技术,给出了在远控岸桥上应用的SICK小车磁尺系统、大车定位RFM100系统和负载定位IRM系统的原理、组成及应用条件,可为码头新增自动化岸桥或者常规岸桥的自动化改造提供参考。     

基于Petri网的新型集装箱自动化装卸工艺死锁分析及消除

<正>1新型集装箱自动化装卸工艺针对现有集装箱自动化装卸系统效率不高、作业方式不符合国内习惯等问题,本文提出采用高低架行车系统和循环平板小车系统的新型集装箱自动化装卸工艺(见图1)。集装箱码头前沿采用双小车岸桥;堆场采用高架行车系统;前沿与堆场之间的集装箱水平运输通过回字形循环平板小车系统来完成;进出港闸口采用低架行车和堆场后方多路回字形循环小车系统,以实现外集卡进口箱和堆场出口箱集疏港。     

自动化双小车岸桥CCTV系统设计

为保证自动化双小车岸桥安全、可靠、高效运行,研发了自动化双小车岸桥CCTV监控系统,可通过实时图像传输监视设备运行情况,实现司机远程操作和设备维保人员对关键部位运行状况的实时监控。     

双小车岸边集装箱起重机主吊具防摇防扭控制特性研究

针对双小车岸边集装箱起重机主吊具防摇及防扭控制问题,建立了小车吊重负载动力学模型,采用基于线性二次型的最优控制方法,实现主小车和主吊具精确位置控制,主吊具防扭控制采用串级控制方式,控制策略为带死区补偿的变增益PID,实现自动防扭控制,整个过程调节平稳,可提高自动化作业效率。     

一种基于激光测距的船形轮廓扫描系统

为提高自动化码头中岸边集装箱起重机对船作业的效率和安全性,提出一种适用于自动化岸桥的船形扫描系统.该系统将激光器安装在岸桥小车架下方,利用激光器测距原理,实时扫描获取船上障碍物的轮廓,并随着小车的运动,生成障碍物点云地图信息;利用障碍物信息和吊具位置关系,对小车和起升限速以达到防撞保护的目的;系统可以提供船形轮廓,用于...     

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.