有安全返港要求的客滚船火警系统的设计特点

客滚船是客船的一种,需满足客船的设计要求.有安全返港要求的客滚船还需考虑安全返港场景下火警系统的冗余性,同时对火警回路和电缆的走线也有一定的要求.以某高端客滚船的火警系统设计为例,结合相关规范对有安全返港要求的客滚船不同于常规客船的火警系统设计要素进行研究.通过分析规范的要求和系统的设计特点,为类似船舶的火警系统设计提...     

客船安全返港系统设计及检验方案

为提高客船安全返港（Safe Return to Port, SRTP）系统的可靠性和安全性,确保船员和旅客的生命财产安全,对客船安全返港系统的设计要求和核查方法进行分析,并通过案例对设计和核查方法的有效性进行验证。研究表明：基于SRTP要求的客船安全返港系统设计和核查方法具有实用性和可行性,能够有效提升客船安全返港系统的设计可靠性和安全性。研究成果可为SRTP系统设计及检验提供一定参考。     

基于安全返港规定的邮轮安全管理

国际海事组织海上安全委员会第82届会议推出的客船“安全返港”新条款旨在从本质上提高客船的安全性。这一要求通过为乘客提供安全区域和保障船舶安全返回港口的基本服务来实现。安全返港新条款的生效改变了客船的设计和建造方式，同时客船的营运和管理也有了不同的理念。介绍国际公约安全返港相关条款的具体规定，阐述其在船舶设计建造和运营管理方面的要求，分析相关条款的不足及其对船舶管理带来的挑战，供邮轮管理相关方参考。     

基于安全返港要求的大型客船电力推进系统设计

大型客船因载客数量大且密集,安全返港设计已成为其一项关键的核心设计要求。文中以某大型客船为例,结合国际海事组织的安全返港法相关要求,对该客船的电力推进系统配置和分隔布置进行设计,论述了在不超过安全界限的进水或火灾事故情况下,综合电力推进系统应如何满足安全返港设计要求。该文可为客船设计人员及客船其他相关系统的设计提供设计思路和参考。     

安全返港理念下的船舶设计方法分析

为了满足安全返港理念下的船舶设计要求,通过对某特种用途船实船设计案例的分析,按照设计流程剖析安全返港设计理念如何在船舶设计流程中体现。针对船舶动力系统设计提出满足安全返港要求的非对称式机舱布置型式,并在船舶保障系统设计中提出跨层式总管设计方法,还总结了多种通用的安全返港船舶设计方法。这些设计方法能满足安全返港规范对系统的设计要求,且其实用性和可靠性已得到实船验证,可为类似船型的设计提供参考。     

邮船电力推进系统安全返港评估

以某邮船为例,采用系统总体评估和事故界限区域详细评估的方法,对电力推进系统的配置方案、设备布置、电缆选型和走向、系统关联等进行分析,评估电力推进系统设计方案是否满足安全返港规范要求,为邮船其他系统的安全返港评估提供指导。     

基于事故界限的客船安全返港能力评估分析方法

客船安全返港能力评估是客船设计的重要部分。根据海安会通函和SOLAS公约相关要求和目的,论述了一种基于事故界限的客船安全返港能力评估分析方法。通过设定事故界限,制作安全返港界限分析表,量化分析事故后系统故障和剩余系统情况,具有准确,全面和追溯性强的特点,可避免事故设定和系统故障遗漏,并可以根据要求扩展分析范围。     

“生生2”客滚船总体设计

客滚船具有大通舱设计和重心位置高等特点,造成设计上难度较大。近年来SOLAS对客船破舱稳性的要求更加严格,增加了客船安全返港的要求,进一步加大了设计难度。从主尺度及参数、总布置、线型设计、稳性研究和安全返港研究设计5个方面详细介绍了"生生2"客滚船总体设计,并对设计中遇到的问题及解决方法进行了详细阐述。     

满足安全返港要求的起重铺管船电气设计浅析

随着人们对海洋的不断开发,许多大型特种用途船舶在作业时会有大量工作人员在船上工作、生活,这就对船舶安全性提出了越来越高的要求。通常"安全返港"是对客船而言,满足此要求的工程船案例较少。该文以某型满足"安全返港"要求深水起重铺管船为例,介绍了电力系统设计方法及对电气系统设计的影响,为今后类似船的设计提供参考。     

创力轮安全返港对机电设备的要求

当客船发生事故后,其能否安全返回港口成为船舶界关注的重点。交通运输部上海打捞局新列编的、入中国船级社级的一艘大型抢险打捞船"创力"号,其作为特种用途船需满足客船的安全返港要求。基于该项目简要分析客船安全返港对于机电设备的一些要求及注意事项。     

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.     

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.     

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.     

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.     

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.     

A simplified method for reliability- and integrity-based design of engineering systems and its application to offshore mooring systems

This paper presents a simplified method for the reliability- and the integrity-based optimal design of engineering systems and its application to offshore mooring systems. The design of structural systems is transitioning from the conventional methods, which are based on factors of safety, to more advanced methods, which require calculation of the failure probability of the designed system for each project. Using factors of safety to account for the uncertainties in the capacity (strength) or demands can lead to systems with different reliabilities. This is because the number and arrangement of components in each system and the correlation of their responses could be different, which could affect the system reliability. The generic factors of safety that are specified at the component level do not account for such differences. Still, using factors of safety, as a measure of system safety, is preferred by many engineers because of the simplicity in their application. The aim of this paper is to provide a simplified method for design of engineering systems that directly involves the system annual failure probability as a measure of system safety, concerning system strength limit state. In this method, using results of conventional deterministic analysis, the optimality factors for an integrity-based optimal design are used instead of generic safety factors to assure the system safety. The optimality factors, which estimate the necessary change in average component capacities, are computed especially for each component and a target system annual probability of system failure using regression models that estimate the effect of short and long term extreme events on structural response. Because in practice, it is convenient to use the return period as a measure to quantify the likelihood of extreme events, the regression model in this paper is a relationship between the component demands and the annual probability density function corresponding to every return period. This method accounts for the uncertainties in the environmental loads and structural capacities, and identifies the target mean capacity of each component for maximizing its integrity and meeting the reliability requirement. In addition, because various failure modes in a structural system can lead to different consequences (including damage costs), a method is introduced to compute optimality factors for designated failure modes. By calculating the probability of system failure, this method can be used for risk-based decision-making that considers the failure costs and consequences. The proposed method can also be used on existing structures to identify the riskiest components as part of inspection and improvement planning. The proposed method is discussed and illustrated considering offshore mooring systems. However, the method is general and applicable also to other engineering systems. In the case study of this paper, the method is first used to quantify the reliability of a mooring system, then this design is revised to meet the DNV recommended annual probability of failure and for maximizing system integrity as well as for a designated failure mode in which the anchor chains are the first components to fail in the system.     

含裂纹钢板复合材料修补强度和刚度数值分析

用ANSYS有限元分析软件对复合材料补片修复含边裂纹和中心裂纹钢板的强度和刚度进行了数值分析.引入相对刚度的概念,研究了钻有止裂孔裂纹的长度对损伤钢板相对刚度的影响,分析了损伤钢板刚度复合材料贴片修补效果;引入屈服载荷提高率的概念,分析了损伤钢板强度的修复效果.     

混凝土道路、堆场面层裂缝的产生与防治

从混凝土道路、堆场的各个结构层分析裂缝产生的原因,并针对性地说明预防措施,阐述裂缝维修方法。     

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。