船舶分段制造车间设备组网技术应用研究

针对船舶分段制造车间设备组网需求,结合当前设备组网现状,提出适用于船舶分段制造车间设备的组网方案,并设计搭建了设备组网平台。根据设备的自动化水平、控制方式、支持通信协议情况对设备采用不同的方式,设备组网平台包括船舶分段制造设备网络管理系统以及车间设备网络。设备组网平台运行情况良好,为实现车间设备之间及其与上层信息系统间的互联互通提供了坚实基础。     

船舶制造车间资源数据采集与场地状态信息采集

针对船舶制造车间存在的生产与管理的信息交互不及时、信息采集效率低、生产过程掌控不足等问题，通过条码、射频识别(Radio Frequency Identification, RFID)、超宽带(Ultra Wide Band, UWB)和自动化装置接口集成等技术，进行车间资源数据采集与场地状态信息采集，实现场地、设备、人员、工装等与管控系统间的互联互通，完成车间场地的物流优化和布局优化，为船舶制造智能车间信息感知奠定基础。     

船舶智能制造模式的核心要素和体系架构

从现代造船模式和智能制造基本特征出发,提出船舶智能制造模式的定义、内涵、核心要素及体系架构,为船舶行业和造船企业推进船舶智能制造模式、构建船舶智能车间和智慧船厂提供思路。     

邮轮薄板分段生产车间智能化管控和设备物联技术

针对邮轮薄板分段车间复杂作业工艺及设备信息联通问题,基于5G和工业互联网等新一代信息技术,构建分段生产车间智能化管控方案,提出由智能设备层、设备控制层、制造执行层、车间管理层、智能决策层组成的多层级系统框架;围绕薄板分段生产车间主要工艺设备,提出包含信息感知系统、数据采集处理系统、数据分析应用系统设备物联集成技术方案,...     

基于车间单元的船舶建造系统仿真

从车间层面上展开船舶建造仿真建模技术的研究,将船舶制造这个复杂庞大的系统分解为更简单、更直接的车间生产仿真模型。通过eM-PLANT仿真建模工具,从设备层到生产线层到车间层自下而上逐层构建车间仿真模型,将生产工艺流程、场地与设备、人员配置、生产计划等船厂生产信息完整地映射在以车间为单元的仿真模型中。通过模拟仿真模型的运行所获取的可视性分析结果,为船厂生产管理者提供更加有效的管理参考资料。     

船舶分段制造车间排产系统研发

为了提高船舶制造业生产效率、实现生产管理一体化,基于准时化生产方式,通过收集分段车间的设备场地分配和划分情况及人员能力数据,研发了船舶分段制造车间排产系统,并得出合理的分段制造计划,可解决船舶制造业存在的经验制造周期下生产计划安排不合理、生产效率低等问题,进一步取得更大的经济效益。     

PDM技术在船舶三维模型管理系统的应用研究

船舶整个制造过程涉及多个部门,如规划部门、设计部门、生产部门、测试部门及使用部门。如何对船舶制造过程进行统一管理及信息集成是提高船舶制造效率的关键。PDM系统是一种基于软件共享平台,可实现不同网络、不同平台之间的数据共享与交互,构建起船舶设计、制造、生产等不同部门之间信息平台的统一管理平台。本文分析了船舶制造管理流程,构建了基于计算机辅助设计、辅助工艺设计及辅助制造的集成管理平台,最后进行了仿真。     

船舶制造企业管加工车间作业分析

船舶制造企业各个车间中船舶管子的生产加工车间是其极为关键的组成部分,但目前各个制造企业车间问题不一,本文对管加工车间现状、管子加工工艺特点及面临的主要问题进行分析论证,为实现船舶制造企业生产精益化的目标,提出针对管加工车间的生产作业和计划及绩效推行精益化的思路,从而提高管加工车间生产效率。     

船舶智能制造技术评价指标体系

研究智能船厂的系统架构和船舶智能制造技术评价要素,从基础层、车间层、企业层3个层级提出船舶智能制造技术评价指标体系,并确定各指标的权重系数,为造船企业开展自评价提供方法。     

基于虚拟现实交互的智能船舶感知测试系统

为了测试智能船舶对复杂场景的感知能力,推动智能船舶感知技术的发展,文章提出了一种基于虚拟现实交互的智能船舶感知测试系统.该系统构建了一个人工闭环的平行智能测试模型,用以测试智能船舶感知能力;采用了数据采集技术、数据重构技术与数据增广技术,解决了现阶段测试数据集匮乏的问题.     

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。