To meet the requirements of tower turnover and blade docking during wind turbine installation,mobile crawler cranes are usually installed on offshore wind power platforms to cooperate with the lifting work of the main crane.Perform finite element analysis on the crawler crane based on its operating load and motion trajectory.The results indicate that the strength and in-place strength of the lower deck of the crawler crane meet the specification requirements under various operating conditions.The research results can provide some references for the strength calculation,structural optimization,and operation plan of installing crawler cranes on offshore wind power platforms.
In order to reduce emissions and meet environmental emission requirements,based on the liquefied natural gas(LNG)dual fuel power modification project of a 180 000 t bulk carrier in operation,the LNG dual fuel system and the specifications involved in such modification are introduced.The key design points for the modification of the power system,fuel supply system,and gas detection system are analyzed,and the design content of hazardous area division is explained.The research results can provide some references for the electrical design of LNG dual fuel power modification engineering.
近日,美国船级社(ABS)发布了《船舶振动指南》(2023)(简称《指南》). ABS 认为,对船舶整体振动的研究是保证船舶适航性、安全性和功能性的重要措施.《指南》旨在为用户提供设计、分析、测量和标准方面的具体指导,以实现将船舶振动降低到可接受水平的目标.
the construction of safety culture for the first domestic large cruise ship project is carries out.The safety culture model of large cruise ship is constructed based on standards and norms.Seven elements of safety culture construction of large cruise ship are defined,including safety oath,norms and procedure documents,positive safety incentive,safety propaganda platform,award-winning competition and answer of safety knowledge,safety awareness of personnel at all levels and the stationing of safety experts,so as to lay a foundation for the safety of large cruise ship construction.Combined with the actual construction situation,implement various elements of the safety culture model to provide support for the construction safety of large cruise ships.
近日,中国船级社(CCS)发布了《海上固定式风机支撑结构指南》(2023)(简称《指南》). CCS表示,为适应当前海上固定式风机支撑结构的市场需求,中国船级社对海上固定式风机支撑结构特有的结构特点进行了充分研究,结合审图、检验的经验以及最新的研究成果,编写形成了《指南》,旨在指导海上固定式风机支撑结构的设计、建造及营运检验服务.
The Heating,Ventilation,and Air Conditioning(HVAC)system is an important support system for the Liquefied Natural Gas(LNG)module E-house,and is also crucial for maintaining the continuous operation of the LNG module.The Russian LNG mining,processing,and transportation module located within the Arctic Circle needs to withstand extremely low temperatures and harsh working conditions,meet strict fire and explosion protection requirements,and many local Russian regulations.Therefore,the usual HVAC system design is no longer able to meet its usage requirements,and it is urgent to design a set of HVAC systems suitable for polar LNG modules:fully consider extreme operating environmental factors in system calculation,compare traditional heat transfer and Hourly Analysis Program(HAP)calculation methods,introduce the selection of heat dissipation and air volume calculation methods.In addition,the special requirements of local regulations in Russia are analyzed and corresponding solutions are provided.The research results can provide some references for the HVAC system design of the polar LNG module E-house.
In order to realize the whole life cycle management of offshore oil and gas platform products,in-depth analysis of the manufacturing characteristics of offshore oil platforms,the basic common technical and normative requirements of intelligent workshop production,the research and development and design of production technology standards and system frameworks for offshore oil platform intelligent workshops,the establishment of offshore oil and gas platform intelligent workshop manufacturing architecture from all elements of shipbuilding resources,system collaborative integration,interconnection,multi-source data fusion and manufacturing execution,and the standardization of intelligent manufacturing from multiple key business links.Through the establishment of the production standard system of the intelligent workshop of the offshore oil and gas platform,the vertical integration from the equipment layer,the control layer,the management level and other levels in the intelligent workshop manufacturing process of the offshore oil and gas platform has been completed,as well as the horizontal integration of the production network across the manufacturing area,and the end-to-end integration of the whole life cycle of the product in each production stage.
In order to save space and facilitate operation,a 12000 t salvage semi-submersible ship is used as an example to introduce the design scheme and improvement measures of the new helicopter platform lighting,and the layout and installation requirements of relevant specifications and standards is analyzed.On this basis,the application scope of different helideck lighting systems is analyzed.The research results can provide some references for the design and construction of other similar products.
近日,中国船级社(CCS)发布了《通过运河船舶构造与设备符合性检验指南》(2023)(简称《指南》). CCS表示,《指南》是在2020版指南基础上进行的升级换版,《指南》于2023年10月1日起生效. 本次指南换版修改主要包括以下内容: 1)删除指南原附录1、2的具体要求,改为以列表方式说明通过运河船舶"构造与设备要求"与巴拿马、苏伊士运河航行规则中相关内容(章节名、号)的对应关系.
To reduce the impact of ship design changes on production plans,a design change technology based on dynamic inventory steel plates is proposed,and its application in shipyard production is analyzed.Research has shown that design change technology based on dynamic inventory of steel plates can effectively reduce the impact of design changes on the entire production plan.Effectively reducing steel plate procurement costs while meeting shipyard production requirements.The research results can provide some references for ship design changes.
近日,美国船级社(ABS)发布了《船上乘客舒适度指南》(2023)(简称《指南》). ABS表示,本指南旨在为适用于客船的舒适度标准提供单一来源.ABS根据当前有关人类心理和生理反应的研究和标准,制定了客观的舒适度评估标准和测量方法.本指南适用于载客量超过12人,用于通勤、旅行、度假和娱乐等用途的客船,包括游轮和渡轮(常规和高速船).
近日,中国船级社(CCS)发布了《极地渔船指南》(2023)(简称《指南》). CCS 表示,《指南》基于我国专业南极磷虾船建造需求,针对极地水域特殊风险,从渔船设计建造营运的角度,为实施CCS相关规范、国际海事组织(IMO)《极地水域操作的船长24 m及以上渔船安全措施指南》以及开普敦协定提供技术服务.《指南》旨在为极地渔船的设计、建造、设备配备、操作和检验发证提供指导,将于2024年1月1日生效.
据中国海事消息,为保障水上生命财产安全、防治水域环境污染,进一步优化国内航行海船检验制度,交通运输部海事局组织制定了《国内航行海船检验规则(征求意见稿)》(简称《规则》),并公开征求意见.意见反馈截止时间为2023年10月30日.
In order to achieve real-time monitoring of the cutting status of plates and profiles during the manufacturing process of the upper module,four key technologies for data networking of cutting workshop equipment are analyzed.Based on actual cases,two cutting machine networking solutions are proposed:Option 1 uses an external data acquisition card;Option 2 is based on the distributed numerical control interface of the cutting machine to obtain hardware related information.Both solutions can interact with the workshop manufacturing execution control system through a local area network,automatically receiving equipment operation status information and feedback production data through external data acquisition cards and corresponding sensors.Multiple numerical control cutting equipment can be monitored simultaneously through a central control room computer,visually displaying electronic information such as equipment status,current processing tasks,and staff,achieving networked control of cutting equipment.
近日,挪威船级社(DNV)发布了《船上碳捕获系统指南》(简称《指南》). DNV表示,当前航运业正面临能源转型,在开发有效减排技术方面面临着越来越大的压力.在此背景下, DNV最近发布了安全安装船上碳捕获与储存(OCCS)系统的新指南.
To reduce greenhouse gas emissions,the current situation and possible emission reduction measures of the shipbuilding industry are elaborated,and the possible types and current difficulties of carbon capture technology application in the shipbuilding industry are analyzed.On this basis,the application prospects of carbon capture technology in the shipbuilding industry are prospected.The research results can provide some reference for CO2 emission reduction technologies in the shipbuilding industry.
近日,中国船级社(CCS)发布了《甲醇燃料加注船舶指南》(2023)(简称《指南》). CCS表示,在国际海事组织(IMO)减碳战略及国内双碳战略快速推进的背景下,船舶应用甲醇燃料的快速发展,甲醇燃料加注的需求已较为迫切.为更好服务行业发展、响应行业需求,CCS 制定了《指南》,可为甲醇燃料加注船的设计、建造及营运提供技术标准.
To ensure the ability of passengers to evacuate safely in emergency situations and the safety of personnel on board,a simplified evacuation analysis method based on the MSC/Circ.1533 circular is proposed.The assumptions,scenarios considered,performance standards,and calculation methods for evacuation analysis are introduced,and a basic evacuation analysis calculation is conducted for a certain Ropax.On this basis,analyze the application cases of secondary evacuation and two new special scenarios added in the regulations on passenger roll off ships.Research shows that special scenarios can increase evacuation time,and special attention needs to be paid to the route design of special scenarios.Evacuation time can be reduced by adjusting the parameters of stairs and corridors,personnel distribution,and evacuation routes to meet the needs of passengers for safe evacuation.The research results can provide some references for the evacuation analysis of passenger ropaxes.
In order to meet the special requirements of harsh polar environments for ship equipment,the specifications and requirements related to materials in domestic and foreign polar development standards are sorted out,and the gaps and problems in material development and testing in China are analyzed.In response to the high standards and special requirements of polar equipment materials,development suggestions are proposed from the aspects of material testing and evaluation,selection,and development.The research results can provide some references for the development of polar ship equipment.
In order to strengthen safety management and ensure the normal operation of scientific research and production,the characteristics and current situation of safety management in ship research institutes are analyzed.It is proposed to fully rely on information technology(IT)and artificial intelligence(AI)and other means to optimize the software and hardware configuration of safety management.Improve the security management information system,establish a visual security management platform,and implement the application of AI technology in personnel protection,danger warning,security monitoring,and other aspects.The research results can provide some references for improving the safety risk prevention and control capabilities of ship research institutes.
