柔性腕的力学性能仿真分析

RCC是针对轴孔装配作业中插轴人孔作业和类似的插拔作业而设计的一种适从装置。主要对非线性有限元方法在RCC柔性腕的力学性能仿真中的应用进行了探讨和研究，进而为新型高性能柔性腕的设计提供理论依据和基础。     

基于ANSYS的预应力连续刚构桥非线性仿真模型研究

介绍了在ANSYS中建立桥梁结构仿真模型的步骤、求解方法和收敛准则,依托工程实例详细叙述了SHELL63和LINK10单元的使用方法和预应力效应的模拟方法,采用基于ANSYS宏语言的二次开发技术,实现了预应力连续刚构箱梁桥的仿真模型构建。     

用ANSYS分析某新型巡逻艇艉部结构振动响应

用ANSYS软件对某新型巡逻艇艉部结构振动响应进行了分析预报。文中所涉及到的建模、边界条件的确定、各种质量的添加方法以及如何加载等技巧均在APDL源程序中得到体现。经过静力计算、模态求解、谐响应分析、时间历程处理、扩展位移解及查看扩展解，可对该艇的艉部结构振动响应作出全面评估，并能给出三维动态仿真演示。     

基于Vega Prime的ROV柔性脐带缆动态模拟

模拟柔性脐带缆在深海作业环境中的动态形态变化是构建遥控潜器（ROV）作业视景仿真系统的重点和难点之一。由于柔性脐带缆在海流作用下受力情况复杂、运动形态多变,利用现有成熟的视景仿真软件难以做到逼真模拟。采用凝聚参数法建立柔性脐带缆的模型、运动方程及变长度算法并进行仿真求解,结合所得数值解,利用OpenGL语言和纹理映射技术动态绘制柔性脐带缆三维模型,并将柔性脐带缆动态模型与在Vega Prime平台建立的ROV主体进行衔接,获得了逼真的柔性脐带缆跟随ROV运动的动态模拟效果。     

基于数值波浪水池的柔性浸没短板流固耦合研究

浸没于水中的柔性板壳可作为水下防波堤、波浪能装置等海洋工程结构的简化模型。论文基于Stokes五阶波浪和人工阻尼消波理论对软件ANSYS Fluent进行二次开发，在构建的数值波浪水池中，对柔性浸没短板的有限元结构模型进行双向流固耦合计算。改变板壳结构刚度、沉没深度等参数，分析短板的水弹性振动和波浪的透射系数。仿真结果表明，短板在特定的板壳结构刚度和沉没深度下会发生共振，并能有效反射波浪。搭建的双向流固耦合计算平台能对复杂的流固耦合现象准确地仿真，为研究柔性浸没短板与波浪相互作用提供可靠的工具。     

基于ANSYS分析桁架结构的图形界面技术研究

该文以桁架结构在ANSYS软件中建模和求解为例，分别利用ANSYS软件本身的UIDL语言和Visual Basic高级开发语言对ANSYS软件分析过程中的二次开发图形界面技术进行了研究，对ANSYS的功能进行了封装，增强了软件的通用性．该方法对于类似问题具有较强的适用性．     

接触分析中一种确定接触面的方法

给出了接触分析中一种寻找接触面的方法，接触问题的求解是ANSYS软件有限元分析中的比较复杂的问题，尤其是确定接触面是解决ANSYS接触问题的第一步。对于接触问题，确定接触面是比较困难的，传统的分析方法大多采用经验估计的方法，当然分析的结果具有不确定性，本文通过ADAMS软件仿真的方法可以首先确定接触的理论位置和接触力，通过ANSYS软件初算出接触变形。从而确定出接触面的大小，位置。为进一步的接触问题求解奠定了基础。本文不仅给出了一类典型问题的分析方法，还就ADAMS和ANSYS这两大软件的结合应用做出了有益的尝试，具有一定的借鉴价值。     

门机小拉杆断裂原因的仿真研究

利用PRO/E软件建立港口门机的虚拟样机模型,以ADAMS为仿真平台,对门机进行动态仿真研究。由于平衡梁与臂架存在安装误差,加大了小拉杆的应力波动幅度,小拉杆的变形对仿真结果影响比较大,在ANSYS中生成小拉杆的模态中性文件,在ADAMS中用小拉杆的柔性体代替它,仿真得到小拉杆危险截面的动应力数据,找出了小拉杆过早断裂的原因,并提出解决方案。     

基于有限元法的柔性靠船桩设计分析

选取广州港某扩建码头中使用的柔性靠船桩作为工程实例,采用P-Y曲线法,利用通用有限元软件ANSYS对柔性靠船桩进行受力分析;同时土体采用Mohr-Coulomb模型,利用有限差分软件FLAC建立实体土单元与柔性靠船桩相互作用模型进行桩的受力复核,并将二者的计算结果进行对比分析,得出较为合理的设计成果,为港工设计人员提供有效参考。     

基于ADAMS的门机组合臂架结构的动力学分析及仿真

结合门机组合臂架结构在货物起升及变幅运动过程中的柔度的影响,采用ADAMS和ANSYS软件相结合的方法将臂架作为柔性体构建动力学模型,进行动力学分析计算与仿真,为臂架系统设计提供了一种实用的动力学分析手段.     

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。