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陈艳霞 《船舶设计技术交流》2008,(3)
以某船的锚机支撑结构有限元计算为例,载荷的施加采用了两种方法,一是根据规范给出的公式计算出每个螺栓所受的力直接施加每个螺栓的节点上;二是通过建立刚性域,在主节点上施加总的载荷。本文介绍并对比了两种方法的计算结果。 相似文献
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通过在桩身一定的位置施加一个轴向弹簧,建立高桩码头的桩基计算模型。根据《高桩码头设计与施工规范》
中关于桩轴向刚性系数的计算公式,给出了不同情况下轴向弹簧刚度系数大小以及施加位置的计算方法。该方法能满足嵌
固点法和m法计算模式下桩基计算模型的轴向刚度相同且与规范规定一致。结合该方法,分别采用嵌固点法和m法建立某高
桩码头工程实例的空间有限元模型。计算结果对比表明:桩身轴力、桩顶弯矩、上部结构各构件的内力均十分接近,验证
了该方法的合理可行性,可为高桩码头结构计算提供参考。 相似文献
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浮式风机上部风机与下部浮式平台通常是由不同的设计单位设计的,因此在进行浮式平台设计时无法获得上部风机参数,进而无法对浮式风机的水动力性能进行全耦合数值计算分析。为此,以OC3-Spar和OC4-Semi两种浮式风机为研究对象,通过在其不同位置施加不同等效载荷,设计不同的限制性耦合方式。在工作海况下对浮式风机进行限制性耦合计算,实现对浮式风机水动力性能的研究,并将所得结果与全耦合方式的计算结果进行对比。结果表明,在轮毂中心处施加风机等效推力对于单柱式和半潜式浮式风机而言均是最优限制性耦合方式。当采用该方式时,工作海况下2种浮式风机的时域结果均与全耦合计算结果具有较高的吻合度,响应谱频率分布与全耦合结果基本一致,但幅值均相差较大。 相似文献
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本文主要阐述了表面式磁路结构永磁同步电机初始转子位置的估算方法,其基本原理基于当电机施加电压矢量时,电机定子铁心磁饱和而产生电流响应的变化。运用此方法可无需检测电机参数及附加设备。为了正确地执行估算,施加于电机最佳电压矢量判定方法进行了研究。试验结果表明应用此最佳电压矢量可以在电机转子静止的情况下估算出电机转子的初始位置。 相似文献
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《船舶与海洋工程学报》2014,(1):126-126
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. 相似文献
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《船舶与海洋工程学报》2014,(2)
正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors. 相似文献
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《船舶与海洋工程学报》2014,(4)
正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 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; 相似文献
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联合作战计划和执行系统 总被引:2,自引:1,他引:1
全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划:时间不限的精密预案计划生成作战计划、方案计划或职能计划;时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础,加速应付危机的能力。 相似文献
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《船舶与海洋工程学报》2014,(1)
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. 相似文献
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《船舶与海洋工程学报》2014,(2)
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. 相似文献
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In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama?
The answer is China South Port Group (Hong Kong, Shenzhen and Guangzhou). 相似文献
The answer is China South Port Group (Hong Kong, Shenzhen and Guangzhou). 相似文献
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桥梁防撞设施物理模型试验 总被引:1,自引:0,他引:1
物理模型试验是预报防撞设施所受撞击力及优化设计方案的主要方法之一。结合杭州湾大桥柔性防撞设施及东海大桥独立式防撞体设计方案,阐述了船—防撞体撞击试验的基本原理、方法、试验方案及相关试验结果。提出了柔性防撞系统的优化方案。试验结果表明,该方案经济有效,可供预报类似桥梁防撞设施撞击力时参考。 相似文献