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基于灵敏度分析的管路系统抗冲击优化设计 总被引:1,自引:0,他引:1
运用Sobol'法、傅立叶幅值灵敏度检验扩展法和重要测度法对某管路系统进行了灵敏度分析,得到了对管路系统冲击响应影响较大的若干参数.以这些参数为设计变量,以管路最大冲击等效应力为目标变量,联合运用子问题法及扫描法对管路系统进行了抗冲击优化设计,得到了一些有益于管路系统抗冲击设计的结论.研究表明,应用基于灵敏度分析的抗冲击优化设计方法能快速判断出舰艇管路系统中不合理的设计如支撑位置、刚度等,其结果为舰艇管路系统提高抗冲击能力进行改装提供了理论支持. 相似文献
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基于近似模型技术和多目标优化理论开展框架结构优化设计。针对传统优化方法不能实现自动计算和连续优化的问题,采用APDL参数化语言实现了框架结构的参数化建模,并将Ansys与ISIGHT集成搭建了框架结构的优化设计流程。基于试验设计,根据灵敏度分析完成了框架结构设计变量的筛选,通过近似模型的精度分析构建了框架结构响应面近似模型。采用响应面近似模型进行数值计算,使用智能优化算法完成框架结构单目标和多目标优化设计,并将结果与有限元计算值对比,验证基于近似模型优化的准确性。 相似文献
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冲击隔离系统限位器参数的优化问题是一个有约束的非线性优化问题,也是一种最困难的优化问题。利用伪并行遗传算法的思想,同时对基本遗传算法进行改造,提出了一种伪并行改进遗传算法(PPIGA),并将其用于冲击隔离系统限位器参数的优化,在优化过程中采用了增量模态叠加法计算冲击响应。作为算例,建立了与试验模型一致的浮筏隔振系统的限位器参数多目标优化模型。计算结果表明,通过优化得到的限位器优化参数能够满足约束条件并实现多目标优化。将增量模态叠加法和伪并行改进遗传算法相结合,解决了冲击隔离系统限位器参数的优化问题,这对于冲击隔离系统的优化设计具有重要的实际意义。 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