轴带发电机及其在三用拖船上的应用

本文对轴带发电装置类型进行分析介绍，并介绍我院设计三有和拖轮选用轴带发电装置情况，为推广使用轴带发电装置提供参考。     

安装在推进轴系中的轴带发电装置

1982年6月,石川岛播磨公司为南非航运公司建造的装载量为1700只标准集装箱的集装箱船“S.A.VAAL”号上,安装了一套新型的轴带发电系统。该系统的轴带发电装置由下列三部分组成:磁场绕组直接安装在主机和螺旋桨之间的推进轴系上,使主机的一部分成     

小船轴带发电节能原理及效益分析

轴带发电是一项行之有效的船舶节能措施，本文以GZF型船用轴带发电装置为例，分析了小船轴带发电的节能原理及节能经济效益。     

柴油电力助推驱动装置

德国西门子公司利用其生产轴带发电机中获得的经验开发了一种新型的柴油电力助推驱动装置，并首次运用于丹麦船东Maersk订造的集装箱船上，该公司向奥登斯造船厂订了九条超巴拿马型集装箱船，这种柴油电力助推驱动装置装在该系列船的第七艘上。西门子宣称，装上柴油电力助推驱动装置后等于主机增加一个缸的功率，而丝毫不影响载货量。     

滑环感应轴带发电系统分析

船舶轴带发电装置的研究是目前世界航运发展的一个方向。也是有关航海轮机工程人员研究的主要方向。本文以西门子公司的FRECON轴带发电装置为例,就当今船用轴带发电机的最新科研成果——滑环感应式轴带发电系统作一下分析。     

日本集装箱船首次采用新型轴带发电机

石川岛播磨重工业公司正在为南非航运公司(South African Marine Corp.Ltd.)建造装载20英尺标准箱1700只的集装箱船(由该公司相生第一工厂建造,1982年7月交货),该船采用新型发电装置,在该船的低速柴油主机与螺旋桨之间的中间轴上直接安装轴带交流发电机。     

“深江丸”差动轴带发电机和电动机系统

1 前言以船舶电源设备节能和省力为主要目的的轴带发电装置系统,从1980年起,以可控硅变频器系统的形式进入实用阶段,以后使用过差动式齿轮,还采用过机械驱动转速为恒速的恒速系统等。在强烈要求进一步提高可靠性、经济性及实现高效率的背景条件下,为满足上述要求,还开发了具有双转子结构的差动式发电装置,并已成批生产。该新式轴带发电机装置完全是按照新概念设计的,即在轴带发电机内侧转子(励磁绕组)的转速根据螺旋桨轴转速的变化而发生变化时,则要控制轴带发电机外侧转子(电枢绕组)的转速及转动方向,来校对其变化部分,使电枢与励磁绕组间的相对速度不变,这样就会使     

西门子WGA23现代轴带发电装置

在现代船舶上,轴带发电机是一种比较经济而受欢迎的发电装置.图1表示装有两台辅柴油发电机和一台简称为SGS的轴带发电机系统的船舶供电系统. 西门子WGA23轴带发电机系统由下列零部件组成:——轴带发电机(1),它由变速的主机带     

船舶轴带发电机系统的建模与仿真

以1700TEU的某集装箱船为母型，研究了远洋船舶轴带发电机系统的工作原理并对其进行数学建模及仿真，所建立的数学模型可以仿真轴带发电机系统的正常工作过程及过渡过程的工况，达到了较高的稳态和动态仿真精度。     

3E级船舶的一种推进系统

3E级船舶是指经济规模,能源效率和环境改善的船舶。西门子公司开发的3E级船舶方案由两个低转速的超长冲程柴油机分别驱动一个螺旋桨和3兆瓦的轴带发电机及余热回收装置。2011年2月已签订了建造20艘3E级船舶(18 000TEU集装箱船)的合同,由大宇造船海洋工程公司配套建造,船东是     

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。