上海交通大学学报(自然版) ›› 2019, Vol. 53 ›› Issue (4): 480-487.doi: 10.16183/j.cnki.jsjtu.2019.04.013
袁昱超,薛鸿祥,唐文勇
出版日期:
2019-04-28
发布日期:
2019-04-28
通讯作者:
薛鸿祥,男,副教授,博士生导师,电话(Tel.):021-34204470;E-mail:hongxiangxue@sjtu.edu.cn.
作者简介:
袁昱超(1991-),男,北京市密云县人,博士生,主要从事深海立管涡激振动研究.
基金资助:
YUAN Yuchao,XUE Hongxiang,TANG Wenyong
Online:
2019-04-28
Published:
2019-04-28
摘要: 针对顶端平台垂荡运动与涡激振动联合作用下顶张式立管动力响应预报问题,提出了一套可供选择的时域数值模拟方法.涡激振动模拟基于流体力分解模型,流体力系数库来源于受迫振荡试验数据.采用时变轴向张力等效立管顶端平台垂荡运动对结构动力响应的影响效应,在每一分析步内根据实时轴向张力更新结构刚度矩阵.最新公布的某2.552m立管模型试验结果用于验证推荐数值方法在顶张力恒定及时变条件下的有效性,预报结果与试验观测吻合度较高.针对数值模拟与模型试验对比研究中发现的亚谐振响应、非对称振型及Mathieu型共振等现象,进行了深入研究并给出相应解释.
中图分类号:
袁昱超,薛鸿祥,唐文勇. 计及平台垂荡的立管涡激振动模拟与试验验证[J]. 上海交通大学学报(自然版), 2019, 53(4): 480-487.
YUAN Yuchao,XUE Hongxiang,TANG Wenyong. Numerical Simulation and Experimental Verification of Vortex-Induced Vibration for Risers After Considering Platform Heave Motion[J]. Journal of Shanghai Jiaotong University, 2019, 53(4): 480-487.
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