共查询到20条相似文献,搜索用时 423 毫秒
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11.5万吨穿梭油船是由挪威FMV工厂设计、大连造船厂建造的大型油船。为了避免船上出现有害振动,本文用船-机-桨最佳配合观点,对该船进行振动分析。 相似文献
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《舰船科学技术》2016,(Z1)
The frequent change in ice drift direction poses a significant challenge for turret moored ship in ice. Variability in ice drift is mainly caused by the winds and currents. To solve this problem, a new method with numerical simulation based on heading control is applied to reduce the risk of operation of The Arctic Tandem Offloading Terminal(ATOT),which includes an offloading icebreaker(OIB) moored to a submerged turret and a shuttle tanker moored at the stern of the OIB in this paper. An icebreaking tanker, MT Uikku, was modeled in a simulation program. Then the level ice load on the tanker was calculated with different ice thicknesses and drift speeds, after which a heading controller assisted with mooring system is used to simulate the horizontal motion of the tanker under the ice action. 相似文献
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基于有限元法,对某穿梭油船货油泵电机基座进行多工况强度分析与模态分析,计算其固有频率,并对比主机、螺旋桨等激励源频率,分析共振可能性.在分析过程中采用点质量方式简化电机质量,以壳单元代替基座实体模型,通过DesignModeler软件建立模型、划分网格和约束边界条件,显示应力和变形计算结果,对设计方案的评定和优化具有较... 相似文献
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NMVOC减排回收系统是近年来发展起来的应用在油船上的一种新型的油气处理技术,其可通过不同的技术方法来减少NMVOC在大气中的排放量,减少温室气体效应以及环境危害,具有极高的技术应用价值和广阔的市场前景.针对目前世界上已经应用到实船的NMVOC减排回收技术,重点分析介绍了几种技术方法及其应用. 相似文献
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Jack Devanney 《WMU Journal of Maritime Affairs》2008,7(1):353-380
According to the CTX tanker casualty database, machinery failures are an important cause of tanker oil spillage. This paper argues that the current large (over 10,000 deadweight) tanker fleet is experiencing at least two full losses of power or steering per day, and probably more than ten. If this fleet were twin screw, properly implemented, this number would be cut by a factor of one thousand. At the same time, tanker low speed maneuverability would be improved dramatically. All this could be done for a net cost of less than that of the double hull. 相似文献
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简要介绍北极地区航运情况与特点,分别利用芬兰-瑞典冰级规范、芬兰-瑞典冰级规范导则及美国船级社抗冰级船舶指导说明,对一艘阿芙拉型(Aframax)油轮进行1A冰级主机功率加强计算,指出规范计算1A冰级阿芙拉型油轮的不足。讨论虽然针对1A冰级船舶,但对于PC7级船舶的主机功率计算也有指导意义。 相似文献
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基于西非、东南亚等热带海域的多点系泊FPSO(浮式生产储油装置)不具备风标效应的特点,为避免串靠外输油时FPSO与穿梭油船相撞,FPSO可采用外输油浮筒系统。主要阐述了该输油系统的基本组成要素,浮筒的功能、结构和设备,浮筒锚泊定位系统以及FPSO与浮筒问输油管线的设计要点和分析方法等,旨在为南海及海外深水油气资源的开发提供指导与参考。 相似文献