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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：基建处处长
其他任职：海岸和近海工程国家重点实验室副主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：水利工程系
学科：水工结构工程. 港口、海岸及近海工程. 防灾减灾工程及防护工程
办公地点：综合实验楼4号，207房间
联系方式：lixin@dlut.edu.cn
电子邮箱：lixin@dlut.edu.cn
An extraction of the natural frequencies and mode shapes of marine risers by the method of differential transformation
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论文类型：期刊论文
发表时间：2009-11-01
发表刊物：COMPUTERS & STRUCTURES
收录刊物：SCIE、EI、Scopus
卷号：87
期号：21-22
页面范围：1384-1393
ISSN号：0045-7949
关键字：Marine risers; Differential transformation; Natural frequencies; Mode shapes
摘要：In the offshore oil and gas industry, marine risers are critical conductors connecting platforms to the wellheads at the seabed for drilling, production and transmission, the vortex-induced vibration design of which requires accurate knowledge of the natural frequencies and mode shapes. The vibration characteristics of marine risers are re-examined in this paper using the method of differential transformation, which is relatively new technique capable of dealing with eigenvalue problems rather efficiently. Natural frequencies and mode shapes of marine risers are examined for various boundary conditions, and solutions are compared with numerical and experimental results published in the literature where available. (C) 2009 Elsevier Ltd. All rights reserved.