蓄电池在海洋平台的应用

本文以应用在海洋平台的蓄电池为对象,通过各种类型电池特性对比,给出了它们在海洋平台的具体应用;并以UPS蓄电池和柴油发电机组起动用蓄电池为重点,结合锦州25-1 T程项目,着重分析其容量估算过程:同时根据海洋平台环境特点,进一步阐述了蓄电池在海洋平台使用的注意事项及维护保养措施,从而对海洋平台所用蓄电池选型、容量估算及...     

海洋平台柴油发电机蓄电池选择分析

深海油气开发中,柴油发电机是海洋平台必备应急电源,其中蓄电池是启动过程中提供应急电源启动的关键设备。文章从蓄电池的基本性能,并结合某深海平台如何选用蓄电池及容量进行了阐述。     

海上平台电池间通风系统设计

基于海上平台电池间的复杂性及特殊性,文章以QHD32-6综合调整项目为实例,详细介绍了电池间通风系统的设计方案,并针对常规电池间排风量的计算原则进行了优化,优化后的方案既保证了排除和稀释蓄电池充放电时所产生的热量和易爆气体,又达到了节约能源的目的。该研究工作为今后海上平台暖通空调的系统设计提供了参考,对海洋工程领域中的暖通空调系统设计完善具有一定意义。     

海洋工程项目蓄电池间通风设计

文章介绍了海洋工程项目中蓄电池间通风设计的通风量计算、设备选型要求及风管布置原则,并强调了在设计过程中所需要特别注意的事项,最终得出船东、船检及船厂都满意的设计方案。     

船用蓄电池保养装置旋盖机构的建模和运动仿真

介绍使用Pro／E与ADAMS建立船用蓄电池保养装置中旋盖机构的虚拟样机方法,建立三维模型样机并进行了运动仿真分析。分析过程中使用参数化设计方法得到适合机构运动要求的零件参数,为旋盖机构和安装平台的整体设计提供了理论依据。     

充电发电机励磁系统的设计与研究

介绍一种基于单片机C8051的充电发电机数字励磁调节器的设计与研究.详细分析了数字励磁调节器的硬件组成和软件构成,具有电路简单、可靠、配置灵活等优点.数字励磁系统的应用,实现了对蓄电池的三级式充电控制,使得蓄电池的充电效率更高,也增加了蓄电池的使用寿命,优化了发电机组间无功功率的分配,增强了机端电压的动态静态指标.通过仿真可以看出,数字励磁系统的采用大大提高了电力系统的稳定性.     

浅析船舶蓄电池的选型与布置

蓄电池作为船舶运营的必备电源,在船舶电气系统中扮演着重要的角色。同时,蓄电池设计也是船舶设计过程中的重要环节,因此船舶蓄电池的选型和布置也受到相关人员的关注。文章从设计着手,介绍船舶蓄电池的特点与分类,阐述船舶蓄电池的容量计算方法,并以各大船级社规范为基础,详述了船舶蓄电池的布置要求,分析船舶蓄电池在选型和布置上的注意事项。     

中压动力蓄电池组监测管理系统的设计

针对中压动力蓄电池组电池数量多、电压高的特点,设计了一种使用CAN通讯网络进行蓄电池参数全监测的中压动力蓄电池组监测管理系统,实现了中压动力蓄电池组全面的、有效的监测管理。     

潜艇分舱分区域总体电磁兼容性设计

总体电磁兼容性设计是潜艇总体设计的关键环节之一,其设计质量直接决定了潜艇总体设计的优劣。以往潜艇的总体电磁兼容性设计主要依据经验和标准,一方面容易导致潜艇平台总体电磁兼容性的欠设计或者过设计;另一方面无法针对性的指导潜艇平台指定区域新系统、设备的研制。相对于其他舰船平台而言,潜艇平台的电磁环境具有独特的区域化分布特点。针对潜艇平台这一特性,提出了潜艇分舱分区域总体电磁兼容性设计体系和流程,以及分舱分区域设计和控制程序,可为今后潜艇开展总体电磁兼容性设计提供参考。     

舰船武器系统模块化对总体设计的影响

模块化作为现代舰船设计与建造方法改变了以往舰船设计的常规作法，将舰船平台的开发与其负载的研究分解开来，使得舰船平台与负载可以独立地平行开发。本文介绍了西方海军武器系统模块化的情况，分析了其对舰船总体设计的影响。     

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。