In response to the development of deep-sea oil and gas resources,which require a high degree of cooperation by crude oil transportation equipment,a new type of ship known as the cargo transfer vessel(CTV)has been deve...In response to the development of deep-sea oil and gas resources,which require a high degree of cooperation by crude oil transportation equipment,a new type of ship known as the cargo transfer vessel(CTV)has been developed.To provide a theoretical reference for the design and equipment of the CTV’s dynamic positioning system,in this paper,we take the new deepwater CTVas the study object and theoretically and numerically analyze its operation,wind load,current load,wave load,and navigational resistance in a range of Brazilian sea conditions with respect to its positioning and towing modes.We confirm that our proposed method can successfully calculate the total environmental load of the CTVand that the CTV is able to operate normally under the designed sea conditions.展开更多
为实现深远海石油的安全高效运输,开发了具有全新船型的深远海多功能原油转驳船(Cargo Transfer Vessel,CTV)。根据原油转驳船工作海域的环境特点,使用有限元计算软件包Sesam,建立了有限元分析结构模型,采用了等效设计波方法对该类型船...为实现深远海石油的安全高效运输,开发了具有全新船型的深远海多功能原油转驳船(Cargo Transfer Vessel,CTV)。根据原油转驳船工作海域的环境特点,使用有限元计算软件包Sesam,建立了有限元分析结构模型,采用了等效设计波方法对该类型船只进行频域水动力分析,并对主要负载进行长期预测,然后将波浪载荷施加于结构模型中进行强度校核。通过校核不同工况下原油转驳船的屈服强度、屈曲强度,并基于谱疲劳分析与子模型技术对易于产生疲劳破坏的节点进行疲劳分析,优化了船体设计结构。计算分析结果表明:原油转驳船的设计强度与疲劳寿命均满足DNV的规范要求,载荷下船体结构应力均低于320 MPa,具有足够的承载能力。通过添加水密补板,优化后的舷侧肋位处纵骨过梁孔有效提高了疲劳寿命,对后续系列船的设计与校核具有一定参考价值。展开更多
针对原油转驳船(Cargo Transfer Vessel, CTV)主推进器设备尺寸大、质量大和安装难度大等问题,设置主推进器基座,用于对艉部结构与主推进器的连接安装。详细研究主推进器基座的设计、制造与安装技术。对主推进器基座进行合理的结构设计...针对原油转驳船(Cargo Transfer Vessel, CTV)主推进器设备尺寸大、质量大和安装难度大等问题,设置主推进器基座,用于对艉部结构与主推进器的连接安装。详细研究主推进器基座的设计、制造与安装技术。对主推进器基座进行合理的结构设计,确定有效的焊接工艺和安装流程,可确保基座的结构稳定性和制造与安装的精度。展开更多
为提高船舶与货物信息处理的实时性和准确性,从网络技术与自动识别系统(AutomaticIdentification System,AIS)技术集成出发,构建船货信息服务平台.以AIS和未来的船舶远程识别与跟踪(Long Range Identification and Tracking,LR IT)系统...为提高船舶与货物信息处理的实时性和准确性,从网络技术与自动识别系统(AutomaticIdentification System,AIS)技术集成出发,构建船货信息服务平台.以AIS和未来的船舶远程识别与跟踪(Long Range Identification and Tracking,LR IT)系统为基础数据源,整合船舶信息、货物信息和港口信息等,使船舶所有人及时了解船舶动向,跟踪市场货源,使货主和租船人能找到合适的船舶、船舶动向以及船舶所有人等资料.该平台对于船货信息的可视化、实时动态管理和辅助决策分析等具有现实意义.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.51509046)Foundation of Ministry of Industry and Information Technology High-tech Ship Scientific Research(Grant No.2016-26)
文摘In response to the development of deep-sea oil and gas resources,which require a high degree of cooperation by crude oil transportation equipment,a new type of ship known as the cargo transfer vessel(CTV)has been developed.To provide a theoretical reference for the design and equipment of the CTV’s dynamic positioning system,in this paper,we take the new deepwater CTVas the study object and theoretically and numerically analyze its operation,wind load,current load,wave load,and navigational resistance in a range of Brazilian sea conditions with respect to its positioning and towing modes.We confirm that our proposed method can successfully calculate the total environmental load of the CTVand that the CTV is able to operate normally under the designed sea conditions.
文摘为实现深远海石油的安全高效运输,开发了具有全新船型的深远海多功能原油转驳船(Cargo Transfer Vessel,CTV)。根据原油转驳船工作海域的环境特点,使用有限元计算软件包Sesam,建立了有限元分析结构模型,采用了等效设计波方法对该类型船只进行频域水动力分析,并对主要负载进行长期预测,然后将波浪载荷施加于结构模型中进行强度校核。通过校核不同工况下原油转驳船的屈服强度、屈曲强度,并基于谱疲劳分析与子模型技术对易于产生疲劳破坏的节点进行疲劳分析,优化了船体设计结构。计算分析结果表明:原油转驳船的设计强度与疲劳寿命均满足DNV的规范要求,载荷下船体结构应力均低于320 MPa,具有足够的承载能力。通过添加水密补板,优化后的舷侧肋位处纵骨过梁孔有效提高了疲劳寿命,对后续系列船的设计与校核具有一定参考价值。
文摘针对原油转驳船(Cargo Transfer Vessel, CTV)主推进器设备尺寸大、质量大和安装难度大等问题,设置主推进器基座,用于对艉部结构与主推进器的连接安装。详细研究主推进器基座的设计、制造与安装技术。对主推进器基座进行合理的结构设计,确定有效的焊接工艺和安装流程,可确保基座的结构稳定性和制造与安装的精度。
文摘为提高船舶与货物信息处理的实时性和准确性,从网络技术与自动识别系统(AutomaticIdentification System,AIS)技术集成出发,构建船货信息服务平台.以AIS和未来的船舶远程识别与跟踪(Long Range Identification and Tracking,LR IT)系统为基础数据源,整合船舶信息、货物信息和港口信息等,使船舶所有人及时了解船舶动向,跟踪市场货源,使货主和租船人能找到合适的船舶、船舶动向以及船舶所有人等资料.该平台对于船货信息的可视化、实时动态管理和辅助决策分析等具有现实意义.
