基于英国克拉克森研究公司和全球主要船级社的网站数据,根据手持订单量和交付与完工情况对全球汽车卡车运输船(Pure Car and Truck Carrier,PCTC)进行市场分析,对全球PCTC平均关键建造周期进行对标分析,查找国内造船企业与国外造船企业...基于英国克拉克森研究公司和全球主要船级社的网站数据,根据手持订单量和交付与完工情况对全球汽车卡车运输船(Pure Car and Truck Carrier,PCTC)进行市场分析,对全球PCTC平均关键建造周期进行对标分析,查找国内造船企业与国外造船企业的差距,为我国造船企业缩短PCTC建造周期提供改进目标。展开更多
为降低汽车运输船(Pure Car Truck Carrier,PCTC)的噪声,减小其电力消耗,对风机房和风道的主要组成部分、独立风机房和结构风机房的不同的特点进行分析,并对货舱内部流场、通风阻力、噪声控制等3方面的关键技术进行研究。结果表明:货舱...为降低汽车运输船(Pure Car Truck Carrier,PCTC)的噪声,减小其电力消耗,对风机房和风道的主要组成部分、独立风机房和结构风机房的不同的特点进行分析,并对货舱内部流场、通风阻力、噪声控制等3方面的关键技术进行研究。结果表明:货舱内部流场主要取决于通风总体方案;控制风道通风阻力是设计的关键,对风机房选型和控制噪声有很大影响;计算流体力学(Computational Fluid Dynamics,CFD)分析可有效提高设计的准确性。研究成果可为PCTC货舱通风设计提供一定参考。展开更多
In the present paper,a new trimaran Pure Car Carrier(PCC) is proposed and a feasibility study on the ship is carried out.In this study,first,the effective horse power(EHP)/car of the PCC running in still water is pred...In the present paper,a new trimaran Pure Car Carrier(PCC) is proposed and a feasibility study on the ship is carried out.In this study,first,the effective horse power(EHP)/car of the PCC running in still water is predicted.By comparing the predicted EHP/car with that of a conventional mono-hull PCC,it is found that the trimaran PCC is superior to the conventional mono-hull PCC at rather higher speed.As ship speed increases,the reduction of the resistance of the trimaran is bigger.It is also found that at common service speed of PCCs,the EHP/car of a small PCC is lower than that of a conventional PCC.Secondly,the optimal L/B of a main-hull of the trimaran PCC in still water is determined.The optimal L/B of the main-hull varies with ship speed and size because the wave resistance decreases but the frictional resistance increases as L/B of the hull increases.As ship size increases,the optimal L/B of the main-hull of the trimaran PCC decreases.Finally,the increase of the resistance of PCCs running in strong wind is predicted.The results show that drift angle and speed reduction of the trimaran PCC are much smaller than the conventional mono-hull PCC because of large side force created by three demi-hulls.展开更多
为更好地指导船舶滚装通道的结构轻量化设计,对当前滚装船滚装通道结构设计标准进行梳理。在国际标准方面,聚焦国际海事组织(International Maritime Organization,IMO)和国际船级社协会(International Association of Classification S...为更好地指导船舶滚装通道的结构轻量化设计,对当前滚装船滚装通道结构设计标准进行梳理。在国际标准方面,聚焦国际海事组织(International Maritime Organization,IMO)和国际船级社协会(International Association of Classification Societies,IACS)的相关技术要求;在行业技术标准方面,重点关注各国船级社的相关技术要求。对滚装通道结构设计中的关键技术进行分项阐述,并以中国船级社(China Classification Society,CCS)滚装通道结构设计的技术要求为例,解析其结构分析及衡准要点。研究成果可为船舶滚装通道的结构轻量化设计提供一定参考。展开更多
基于智能控制废气再循环(intelligent control by exhaust recirculation,iCER)系统,通过原理设计、设备布置及系统设计等方式,利用实船安装、调试和试验相结合的方法,分别测得主机台架试验和实船试验时的相关参数,并与未配备iCER系统...基于智能控制废气再循环(intelligent control by exhaust recirculation,iCER)系统,通过原理设计、设备布置及系统设计等方式,利用实船安装、调试和试验相结合的方法,分别测得主机台架试验和实船试验时的相关参数,并与未配备iCER系统的主机的参数进行对比。经试验验证,主机配备iCER系统可减少温室气体和甲烷的排放,降低燃油燃气消耗率。展开更多
以某汽车滚装船为例,运用有限元计算软件FEMAP with Nastran分别建立初始状态、典型横舱壁方案以及其他构造考虑方案的整船体模型,探讨各方案的构造特点及在各层甲板处的相对挠曲变形量,以典型横舱壁方案在整船抵抗挠曲变形上的能力值...以某汽车滚装船为例,运用有限元计算软件FEMAP with Nastran分别建立初始状态、典型横舱壁方案以及其他构造考虑方案的整船体模型,探讨各方案的构造特点及在各层甲板处的相对挠曲变形量,以典型横舱壁方案在整船抵抗挠曲变形上的能力值为参考,对比各模型的计算,结果表明,双壳构造结合梯道围壁的方案与典型的横舱壁设计方案相比较,在整船抵抗挠曲变形能力上有一定的近似性。展开更多
文摘基于英国克拉克森研究公司和全球主要船级社的网站数据,根据手持订单量和交付与完工情况对全球汽车卡车运输船(Pure Car and Truck Carrier,PCTC)进行市场分析,对全球PCTC平均关键建造周期进行对标分析,查找国内造船企业与国外造船企业的差距,为我国造船企业缩短PCTC建造周期提供改进目标。
文摘In the present paper,a new trimaran Pure Car Carrier(PCC) is proposed and a feasibility study on the ship is carried out.In this study,first,the effective horse power(EHP)/car of the PCC running in still water is predicted.By comparing the predicted EHP/car with that of a conventional mono-hull PCC,it is found that the trimaran PCC is superior to the conventional mono-hull PCC at rather higher speed.As ship speed increases,the reduction of the resistance of the trimaran is bigger.It is also found that at common service speed of PCCs,the EHP/car of a small PCC is lower than that of a conventional PCC.Secondly,the optimal L/B of a main-hull of the trimaran PCC in still water is determined.The optimal L/B of the main-hull varies with ship speed and size because the wave resistance decreases but the frictional resistance increases as L/B of the hull increases.As ship size increases,the optimal L/B of the main-hull of the trimaran PCC decreases.Finally,the increase of the resistance of PCCs running in strong wind is predicted.The results show that drift angle and speed reduction of the trimaran PCC are much smaller than the conventional mono-hull PCC because of large side force created by three demi-hulls.
文摘为更好地指导船舶滚装通道的结构轻量化设计,对当前滚装船滚装通道结构设计标准进行梳理。在国际标准方面,聚焦国际海事组织(International Maritime Organization,IMO)和国际船级社协会(International Association of Classification Societies,IACS)的相关技术要求;在行业技术标准方面,重点关注各国船级社的相关技术要求。对滚装通道结构设计中的关键技术进行分项阐述,并以中国船级社(China Classification Society,CCS)滚装通道结构设计的技术要求为例,解析其结构分析及衡准要点。研究成果可为船舶滚装通道的结构轻量化设计提供一定参考。
文摘基于智能控制废气再循环(intelligent control by exhaust recirculation,iCER)系统,通过原理设计、设备布置及系统设计等方式,利用实船安装、调试和试验相结合的方法,分别测得主机台架试验和实船试验时的相关参数,并与未配备iCER系统的主机的参数进行对比。经试验验证,主机配备iCER系统可减少温室气体和甲烷的排放,降低燃油燃气消耗率。
文摘以某汽车滚装船为例,运用有限元计算软件FEMAP with Nastran分别建立初始状态、典型横舱壁方案以及其他构造考虑方案的整船体模型,探讨各方案的构造特点及在各层甲板处的相对挠曲变形量,以典型横舱壁方案在整船抵抗挠曲变形上的能力值为参考,对比各模型的计算,结果表明,双壳构造结合梯道围壁的方案与典型的横舱壁设计方案相比较,在整船抵抗挠曲变形能力上有一定的近似性。
