燃气流公共排导和同心筒技术在舰载导弹垂直发射装置中的应用分析

燃气流公共排导是当今舰载导弹垂直发射装置最为常用的一种燃气排导模式，同心简技术是近年来新兴的一种垂直发射技术。从结构特性人手，对两种类型发射装置的多项性能指标进行分析和比较，同心筒技术在燃气排导性能、可靠性、安全性等方面具有一定优势，而采用公共排导技术的发射装置在备弹量、适装性等指标卜占优。两种技术各有特点，应根据实际使用要求以及不同的装舰对象区别应用。     

同心发射筒研究现状

介绍同心发射筒的特点、关键技术、结构组成和工作原理;比较2种一筒/箱多弹布局方案并给出应用实例;从发展方向、燃气流排导方案、冲击效应、燃气降温、导流板设计和燃气开盖技术等方面介绍燃气流排导的研究进展;最后对我国发展同心筒式垂直发射装置提出建议。     

垂直发射装置排导系统内燃气流运动研究

采用数值计算方法对导弹在舰载导弹垂直发射装置中排导系统内的燃气流场进行了仿真分析，认为导弹垂直起飞过程中高速燃气射流可将外部冷空气引射入排导系统内。通过对排导系统内燃气射流的引射机理进行研究，对于利用燃气射流的引射功能降低排导系统内的温度，改善导弹发射的热环境具有重要意义。     

舰载导弹的同心发射筒式发射装置

同心发射筒式发射装置（ＣＣＬ）是水面舰艇的一种新概念导弹发射装置。每一同心发射装置都具有独立的燃气排导系统和配套的电子设备。与现役导弹发射系统相比，这些新技术不但为舰艇设计提供了新的通用性，具有造价低廉、重量轻巧等优点，而且还可显著提高导弹发射系统的性能。     

垂直发射装置燃气排导效率研究

本文通过求解三维N-S方程,利用k-ε二方程的紊流模型,采用数值计算方法对导弹发射时某型燃气排导系统不同结构尺寸对燃气排导效率的影响进行仿真分析。通过数值模拟,得到了不同结构尺寸下的燃气排导效率,以及不同位置的温度曲线,对燃气排导系统的设计有很大的指导作用。     

同心发射筒系留盖体燃气开启技术

为实现同心发射筒上的系留盖体在燃气作用下打开,讨论盖体分为4片被燃气吹开和盖体整体被燃气吹开2种方案,并对盖体被燃气吹开过程进行模拟分析。计算结果表明,盖体分为4块被燃气吹开速度快,筒内压强降低速度快。因此,盖体分为4块的方案对筒内导弹发射环境更有利。     

舰载垂直发射系统同心贮运发射筒

同心贮运发射筒是水面舰艇发射武器的一种新概念。每个同心发射筒都有其自持式燃气排导系统和一套完整的发射筒电子设备。与现有的导弹发射系统相比,此项创新为总体设计师在舰艇设计方面提供了新的多方面的适应性,在费用和重量方面有显著优点,而且改善了性能。     

HALON1301抑制剂对导弹舱室燃气流场的影响

舱室中导弹发生意外点火时危害巨大,若不能及时抑制,将会对整个舰船带来巨大的危害。当导弹意外点火时为了排导高温高压燃气,排导口必然打开,而排导口打开的同时会有部分室外空气从排导口卷吸进入舱室内,带来二次危害。本文基于多组分有限速率反应模型,数值模拟导弹意外点火情况下,HALON1301抑制剂在不同喷注方式和不同流量下,对导弹舱室燃气流场排导的影响和二次燃烧的抑制作用,并针对不同工况进行对比分析。     

船用气水分离器流场的数值模拟

本文提出了一套船用燃气轮进气气水分离器曲折流场的数值计算方法，运用Ｋ－ε二方程湍流模型求解Ｎ－Ｓ方程，通过交错网格的压力积分求出了压力场。对不同结构参数的滤器进行了计算分析，找出了最优结构参数的选下范围，计算结果与实验值进行了比较，吻合良好。     

战斧导弹厚壁式同心筒发射装置的机械设计分析

本研究介绍了用于战斧限制性点火试验的厚壁式同心筒发射装置的结构计算。发射装置各组件上的负载源于内部压力、温度和发动机推力。文章根据这些负载确定了各组件的大小并预测了其安全系数。试验用发射筒在推力和压力负载方面采用了安全设计方案。本研究的重点是结构上的热负载 ,因为高热应力可能使上气道下部产生局部弯曲变形。另外 ,在一维流体计算中未计及的局部“过热点”也有可能使结构出现腐蚀或熔化现象     

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.