尾滑道式船载小艇收放系统的研发及应用

尾滑道式小艇收放是国内的一种新型船载小艇收放技术,与传统小艇收放方式相比,具有收放艇快速、安全、可在较高海情下操作等明显优势.文章介绍了国内首创的尾滑道式船载小艇收放系统的设计、试验、使用特点和广泛应用前景.     

一种新型尾滑道式船载小艇收放系统可行性研究

作为一种新型的尾滑道式船载小艇收放系统,在回收小艇时,小艇需要以一定的航速冲上尾滑道。回收能否成功除了受制于驾驶员操作水平等主观因素,还与滑道的涉水深度、小艇与母船尾滑道的运动响应等客观条件有关。本文利用切片理论计算了小艇与母船尾滑道的运动响应,并对3级及4级海况下回收小艇的可行性进行了分析。     

一种新型尾滑道式船载小艇收放系统

作为一种新型的尾滑道式船载小艇收放系统,除了兼顾国内其他滑道系统的优点之外,其独创性地采用自动捕捉挂钩的操作形式。在回收小艇时,小艇以一定的航速冲上尾滑道后,捕捉横杆自动捕捉小艇艇钩,并由牵引装置将其牵引至存放位置。实船证明,该收放系统减少了回收时间,提高了高海况回收时的安全性。     

基于专利分析的艉滑道式小艇收放技术发展态势

基于艉滑道式小艇收放技术的全球专利,运用检索、标引、统计和对比等分析方法,从专利申请趋势、专利布局区域、主要申请人和专利技术分布等方面分析全球艉滑道式小艇收放技术的发展态势.通过专利申请趋势和布局区域分析,总结国内外艉滑道式小艇收放技术发展现状;通过主要申请人的分析,识别出艉滑道式小艇收放领域的技术竞争对手及优势方向;通过专利的技术分布及法律状态分析,研究艉滑道式小艇收放领域技术的分布现状,识别出该领域核心技术,从而为中国艉滑道式小艇收放技术前瞻性布局与创新引导政策制定提供有益参考.     

尾滑道式小艇收放载荷与加强结构分析

某型海警船采用的滑道式收放小艇装置,可以使工作艇快速冲上母船或脱离母船,实现小艇安全快捷地收放。文中采用动力学方法,对小艇上滑道过程的载荷进行数值模拟计算,并进行了尾滑道加强结构的强度计算分析。模型计算与实船试验表明,该船的结构加强设计满足相关要求,为相似的滑道式收放系统结构设计提供一定的参考。     

基于单片机的大型舰船尾滑道式小艇的自动收放装置设计

舰船上的小艇是舰船作战的重要补充,可以执行巡逻、救援、逃生等功能。小艇具有灵活性高、适用环境广、速度快等优点。但是由于小艇的燃料不足,因而必须要将舰船和小艇有效结合起来。小艇的自动收放装置是一种快速将小艇投放和回收的装置,收放速度和稳定性将直接影响舰船的作战性能。本文提出一种基于STC单片机的大型舰船尾滑道式小艇自动收放系统,分析舰船尾滑道式小艇收放装置的原理,并在此基础上设计了系统的硬件系统和软件。系统在使用过程中受到外部风浪影响小,工作稳定,实用性较高。     

海迅完成艉滑道式小艇收放系统研发

大型公务船一般要配备1-2条高速小艇作为工作艇,用于弥补大船船体较大无法在浅水区域执行任务的不足。传统的小艇收放装置一般用吊机收放作业,不仅速度慢,而且安全性也不够,因此艉滑道技术应运而生。艉滑道技术最早出现于国外,目前国内仅少量公司拥有此技术,主要用在功能性要求较高的军事船和公务船上。艉滑道式小艇收放是利用布置在船艉部的滑道,通过收放设备使小艇在滑道上移动,完成收放的一种新型的收     

艉滑道式小艇收放装置液压系统的设计与分析

为实现小艇安全快捷地收放,以执行水面作业、海上人命救生和遇难船舶施救等任务,设计了一种艉滑道式小艇收放装置液压系统,并对艉门负载特性以及手动释放液压回路的性能进行了分析。所设计的系统具有以船电为动力的正常收放和母船失电后的手动释放两种功能,能够满足2009年9月新版《船舶与海上设施法定检验规则》的规定,具有功能齐全、放艇快捷及安全可靠等特点。     

无人水面艇收放技术发展趋势探讨

无人水面艇(USV)是当前无人系统研究的热点领域之一,由于USV收放技术涉及到回收引导、对接、挂脱钩等难点而成为目前的前沿研究课题。通过收集整理国内外现有及在研USV的收放技术要点,归纳出USV收放操作过程通常采用吊放式、艉滑道式、坞舱式3种收放装置。在此基础上,从设备配置、空间需求、波浪影响、母船航速、适应海况、操作情况和收放耗时等方面,分别对上述3种USV收放技术进行对比分析,得出艉滑道式收放技术更适合于USV收放需要的结论。同时,指出当前USV及其收放装置在实现自主收放时需要开展的实用化研究方向,期望能对USV及其收放技术的发展起到一定的指导作用。     

单滑道式快速收放系统在海事巡逻船上的应用

为实现快速收放救生艇，建议采用单滑道式收放系统。介绍了单滑道式快速收放系统的构成，并通过和液压吊机起吊方式对照比较，结合实际使用情况，说明该系统有明显的使用优势，值得在大中型巡逻船上推广使用。     

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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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.     

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。