铺管船移船绞车钢丝绳角度检测技术

论述了铺管船移船绞车钢丝绳出绳角度的检测技术。通过安装于绞车出绳导索器上的绝对值编码器,再配合空间几何运算,得出精确的钢丝绳出绳角度。配合绞车钢丝绳绳张力的使用,可以实时指示铺管船的具体受力(移动)方向。在实际铺管作业中,既提高了铺管船移动方向判定的精确性,又提高了作业时的安全性。     

绞吸船横移绞车改造安装技术方案

横移绞车故障频发，扭矩过小，咬绳现象时有发生，导致船舶生产率下降和钢丝绳维护成本上升。根据相关规范和船舶设计图纸，对横移钢丝绳咬绳问题进行分析，找到其产生的原因。结合新横移绞车主要技术参数和图纸，制定绞车改造安装的技术方案1和2，从避免钢丝绳咬绳现象发生的角度详细论证两种方案中绞车卷筒中心相对桥架中心是否须偏转一定角度的必要性。结果表明，采用技术方案2现场安装新横移绞车后，船舶施工时绞车钢丝绳规则排布，无咬绳现象发生，提升船舶性能。     

电动液压自动系览绞车

海上运输船舶装卸货时吃水的变化、涨潮落潮以及水流和风速的变化导致对船舶系索张力的控制。因此有必要对系缆作业通过采用自动系缆绞车来实现机械化与自动化。在《卓娅》号散装货船(图1)和《克里米亚》号油船上就安装了苏联制造的首批6型自动系缆绞车。     

液压拖曳绞车控制系统设计与研究

针对现有液压拖曳绞车绳长和绳速显示不准确的问题,设计了一种可以优化绳长和绳速计算的方法。系统可根据当前实际层数和槽数,自动计算当前绳长。控制系统程序中增加了手柄分段斜坡控制,提高了操作的微动性和平稳性;增加了恒张力自动保护模式,提高了恒张力拖航时的安全性和可靠性。     

基于模糊-PI控制的海洋绞车张力控制系统设计

文中针对远洋船舶上多台海洋绞车协同工作时的张力不平衡问题，提出了一种基于模糊一PI控制的绞车恒张力系统，采用PLC控制核心，使用变频交流电机作为绞车动力，实现对多台绞车的全自动控制。并设计了控制系统的虚拟仿真样机，该控制系统具有良好的稳定性，并且结构简单，灵活度高，可保证多台绞车在复杂海洋环境中的协同作业。     

一种船舶吃水深度检测系统的设计

船舶吃水深度是一个重要的测量参数,对于防止超吃水,保证船舶正常行驶和船舶上人员的生命安全有着重要的意义。传统的人工检测方法有很多弊端,为了克服传统检测方法的缺点,自动检测方法得到应用。本文分析4种应用最为广泛的船舶吃水深度检测方法,重点对多点激光测量系统进行研究和设计,采用DSP数字控制器作为主控芯片,结合多点测量技术和斜射测量技术,取得了良好的测量效果。船舶可通过该系统实时监测和调节吃水深度,保证船舶在正确的状态下航行,减少航行阻力,起到一定的节能效果。     

船舶起货绞车

苏联国家标准(ГОСТ12617—67)考虑了船舶绞车在起货捲筒上的拉力、吊索运动速度、卷筒容绳量和电动传动型式等方面的要求,而规定绞车的11种式样(附表)。双速绞车的拉力的两个值是分数。在具有两个卷筒时拉力值作为它们的和(6和10式样)。3和7式绞车拉力相同,速变不同。4和8、5和9、6和10式绞车也这样。这时,7、     

一种稳缆绞车控制系统设计与研究

为了提高海上吊装或风电场吊装,本文设计了稳缆绞车电气控制系统,采用西门子G120电动变频驱动,控制器选用西门子S7-1200。G120设置在转矩控制模式时,绞车工作于随动工况,使缆风绳处于恒张力状态。系统配置一个7英寸触摸屏,可以设置相关参数和显示缆绳张力。系统使用性能稳定,达到了预期效果。     

船舶电动自动系泊绞车的研制

自动系泊绞车在船舶上的应用已有百余年的历史。按驱动形式、自动原理、电动机类型、检测方式等分类,有十余种以上。 在蒸汽、电动液压、电力驱动的自动系泊绞车中,以电动自动系泊绞车的应用最为广泛。     

ЛЭ61М型绞车

ЛЭ61М型绞车同于内河船舶上启闭货舱盖。绞车由装有行星减速器的卷筒,基座和电气设备组成。采用船舶电网供电的交流电动机拖动。张力缆索的额定拉力为19.6千牛顿;额定拉力下的收缆速度不小于9米/分;卷筒上     

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.     

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.     

舰艇反鱼雷技术

对目前舰艇反鱼雷技术中的非杀伤、软杀伤和硬杀伤等比较先进的手段进行了阐述,并在此基础上分析研究了舰艇反鱼雷技术的发展趋势。     

Community-Based Management for Sustainable Fisheries Resources in Phang-nga Bay,Thailand

Fishing communities, the Government of Thailand Department of Fisheries, local nongovermnental organizations, universities, the Food and Agriculture Organization of the United Nations (FAO), and FAO's Bay of Bengal Program have undertaken a partnership in management of Phang-nga Bay's coastal resources. It is the first project of its kind in Thailand, and although still in the early stages, offers insights that may contribute to our knowledge of how we can improve our management of coastal resources, including the importance of (1) building relationships within the governance process; (2) combining education, enforcement, and economic incentives to achieve compliance; (3) implementing solutions early; and (4) government support of community-based decisions. These insights reinforce trends emerging in other coastal management projects in the Asian region.     

Catalyzing Coastal Management in Kenya and Zanzibar: Building Capacity and Commitment

Site-based projects were initiated in Chawka Bay-Paje, Zanzibar, and Nyali-Bamburi-Shanzu, Kenya, to demonstrate the benefits of an integrated coastal management (ICM) approach for addressing coastal issues such as tourism development and enhancement of resource-dependent village economies in eastern Africa. A two-year, multidonor project used three primary strategies to make rapid, but sustainable, progress toward ICM. These included using interagency government teams for ICM planning, adopting an internationally recognized framework for ICM as a project ''road map,'' and explicitly incorporating capacity-building strategies into all aspects of the project. Within two years, integrated ICM action strategies, prepared through participatory processes, were being implemented at both sites, and both teams were working to expand the scale and scope of ICM in their nation. More importantly, the project helped create committed, capable, interagency groups that continue to work together to address urgent ICM issues.     

单相PWM整流器的建模与仿真分析

文章详细分析了单相VSR型PWM整流器的整流原理,建立了电流内环,电压外环的单相VSR型PWM整流控制器的数学模型和逻辑框图。在MATLAB／Simulink软件环境中进行了仿真,分析了模型的可行性。     

无人反潜系统自主指挥控制研究

无人反潜系统的指挥控制问题是关系其具备实际作战能力的主要问题之一。论文在分析无人反潜系统指控原理和其自主指控水平分级的基础上,采用可变自主控制结构,研究了无人反潜系统分级可变自主指控实现的方法。该方法可赋予无人反潜系统可变的指挥控制自主性,使其在工作环境中能够实时评估自身的自主能力,并主动引入人工干预。这种具备人机智能融合特性的自主指挥控制方法更适应无人反潜系统在复杂战场环境中实战化的需求。     

船舶系泊定位装置方案介绍

简述船舶定位装置的功能、组成、工作原理及需要注意的问题等,对船舶系泊定位的设计有借鉴意义.     

船长与引航员关系的法律分析

在船长与引航员的法律关系上,存在一些比较流行的观点和看法,却未必经得起法律思考,缺乏一定的法律依据。将《劳动法》、《合同法》、《海商法》、《船舶引航管理规定》等法律、法规和部门的规章作为依据,从法律的角度分析船长在实际工作中遇到的问题,使船长从法律的高度正确认识船长与引航员的关系,有利于船长与引航员之间关系的认识和处理,达到驾驶台团队的和谐、驾驶台资源的充分利用,进而达到增强和改善港内引航安全,做好船舶安全管理工作的目的,同时也为了避免或减少在实践中造成行政违法行为的发生。