MAN—B＆W MC／MC—C系列船用低速柴油机的发展及改进

为满足世界船舶市场的需求，MAN—B＆W公司自80年代推出MC系列（后又发展成MC／MC—C系列）船用大功率柴油机，当初仅以600毫米缸径为代表，发展到今日，已成为从260毫米到980毫米缸径、不同缸数的全系列，并仍在继续扩大，结构和性能更加完善合理，可为各类船舶提供最佳匹配的船用主机。本文着重介绍MC／MC—C系列船用低速柴油机的设计发展及改进情况。     

6E34/82SDZC型船用低速柴油机通过部级鉴定

为满足沿海及内河船舶对小缸径低速柴油机的功率要求,根据国家对引进技术要坚持“引进、消化、吸收、创新”的方针,中国船舶工业总公司沪东造船厂和七一一所通过对我国引进机的调研、消化和吸收,联合     

世界上缸径最小的低速柴油机——B&WS26MC型机将在宜昌船舶柴油机厂生产

经中船总公司批准,宜昌船舶柴油机厂即将生产丹麦 B&W 公司的最新机型 S26MC/MCE 型低速柴油机。该机是 B&W 公司在性能良好的 SMC35/MCE 低速机基础上进一步向小缸径发展而     

船用低速柴油机实时仿真模型开发及应用

以某型小缸径船用低速柴油机为对象,基于该柴油机一维性能模型,开展实时仿真模型的快速开发和标定。比较了简化后实时仿真模型与原性能模型的计算时间和仿真精度。应用该模型在硬件在环测试平台上测试新研制的柴油机控制器。试验结果表明,该模型可正常接收和反馈正确的控制器指令和柴油机运行参数,满足电控系统硬件在环测试的试验要求。     

自主品牌船用低速柴油机燃油喷射技术

针对电控燃油喷射技术在低速机领域的应用,以自主设计、开发的"HHM-6EX340EF小缸径低速柴油机"采用最新的电控高压共轨燃油喷射技术为例,详述该系统的基本结构、工作原理、试验测试及整机测试结果。测试结果表明:该型整机满足国际海事组织Tier Ⅱ排放要求,部分负荷点燃油消耗率略优于同等功率机型。     

装有EGR系统的柴油机排放符合性验证方法

正废气再循环(EGR)是柴油机为满足NO_x排放要求而采取的一种机内减排技术。船舶柴油机为满足公约/法规排放标准而安装EGR系统,需验证其排放性能是否达到公约/法规的要求。本文依托科技部项目"自主船用低速柴油机开发验证平台研究及关键技术开发",以中船动力研究院有限公司改造加装EGR系统的6EX340EF柴油机为研究对象,分析和识别其与     

MA N-B & WS 26 MC型低速机的使用结果

为了与小型船舶用齿轮传动的四冲程中速柴油机竞争,MAN B&W 公司推出全世界最小缸径的 S 26MC 型二冲程低速柴油机,其缸径和冲程为260×980毫米,平均有效压力16.8巴,在250转分时的单缸功率495马力,燃用180厘斯(比重997公斤米~3)的重油,燃油耗在最大额定功率时为130克马力·小时,在部分负荷时为125克克力·小时     

新型大功率RK280型柴油机

英国Alstom发动机公司的Ruston柴油机公司最近推出一种比RK270更新、功率更高的新型大功率柴油机，该新型柴油机被命名为RK280型柴油机。开发该新型大功率柴油机的主要目的是满足船舶市场的需要，为建造快速、重载渡船以及军用舰船提供必要的条件。RK280型柴油机与RK270型柴油机相比，其缸径由270mm增大至280mm，行程由305mm增大至330mm。     

发电柴油机高压油泵柱塞卡阻实例

<正>0引言发电柴油机是船舶上至关重要的设备,发电柴油机出现故障,直接威胁船舶的安全。2013年底建造的某76 000吨级油船的发电柴油机型号为YAMARA 6EY18AL(日本洋马柴油机厂2013年制造),是四冲程、6缸、水冷柴油机,缸径为180 mm,冲程为280 mm,功率为800 k W,转速为900 r/min。针对该船发电柴油机高压油泵频繁出现柱塞咬死的情况,笔者进行初步分析及处理,供同人参考。     

消息报导

沪东船厂制成新型船用主机一种具有国际先进水平的节能型,小缸径超长冲程低速船用柴油机,7月下旬在上海沪东造船厂柴油机分厂制造成功,第一台HD-MAN B&W 6S26 MC型柴油机是该厂引进丹麦MAN.B&W柴油机公司专利技术制造成功的又一种新系列柴油机,这种目前世界上缸径最小的二冲程十字头发动机特别适用于中小型舰船。该机是丹麦MAN.B&W公司在L35MC型柴油机的基础上于1986年推出的新型柴油机。具有匹配灵活性是该机的主要特点之一,在它的匹配区内、所要求的最佳功率和转速的配合是完全自由选择的,可以通过功率范围内调整,使整机具有最佳运转状态,从而使船舶达到最好的经济效果。具有燃油经济性和能使用劣质渣油是其另一特点。在平均有效压力为16.8巴、转速为     

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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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。