基于ECMWF再分析数据的波斯湾波浪特征分析  

Analysis of persian gulf wave characteristics based on ECMWF reanalysis data

作　　者：高林春 王收军 陈广来 陈松贵 GAO Lin-chun;WANG Shou-jun;CHEN Guang-lai;CHEN Song-gui(School of Mechatronic Engineering,Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control,National Demonstration Center for Experimental Mechanical and electrical engineering Education,Tianjin University of Technology,Tianjin 300384,China;Tianjin Research Institute of Water Transport Engineering,Tianjin 300456,China)

机构地区：[1]天津理工大学机械工程学院天津市先进机电系统设计与智能控制重点实验室,机电工程国家级实验教学示范中心,天津300384 [2]交通运输部天津水运工程科学研究院海洋水动力研究中心,天津300456

出　　处：《天津理工大学学报》2019年第3期34-37,共4页Journal of Tianjin University of Technology

基　　金：天津市科技计划项目(17PTYPHZ00080);中央级科研院所基本科研业务费资助项目(TKS160108);天津市科技服务业科技重大专项(16ZXFWGX00050)

摘　　要：波斯湾是“海上丝路”的一个重要节点,中国-波斯湾航线承担了中国海上石油运输量的一半左右,是中国能源进口的生命线.本文从欧洲中期天气预报中心下载精度为0.125,时间间隔为6小时的波高数据,统计分析了2012—2013年波斯湾风浪场的特征.结果表明:波斯湾第二季度波高极值(接近3m)和有效波高均值(0.6m)均高于其他季度,第一、第三、第四季度的有效波高均值均小于0.6m.通过统计分析得到比较准确的统计分析结果,掌握波斯湾波浪的分布规律,为波斯湾海域的港口建设和航运安全提供技术支持.In practical applications,when the switching power supply is not working,some interference signals are still transmitted to the low-voltage output side through the coupling path on the high-voltage input side,which is a coupling attenuation phenomenon of electromagnetic interference. At present,there is no test method for coupling power supply coupling attenuation. Based on this,this paper proposes a test method based on switching power supply for high and low voltage coupling attenuation. The interference signal is injected into the high voltage input side of the switching power supply by means of a coupling/decoupling network. The interfering signal is coupled to the low voltage output side by parasitic parameters in the electronic component or Circuit. The receiver is used to measure the voltage on the low-voltage output side to obtain the high-low-voltage coupling attenuation characteristic curve of the switching power supply in the case of power failure. The experimental results show that the coupled attenuation test method proposed in this paper is feasible,and it perfects the electromagnetic compatibility test technology. According to the BS-EN-50289-1-6 standard,it is recommended that the high-low voltage coupling attenuation coefficient of the switching power supply is not less than 60 dB.

关 键 词：波斯湾 风浪场 统计分析 

分 类 号：TV139.2[水利工程—水力学及河流动力学]