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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：大连理工大学白俄罗斯国立大学联合学院院长、直属党支部书记
其他任职：辽宁省极地海洋专业技术创新中心主任
性别：男
出生日期：1972-12-30
毕业院校：大连理工大学
学位：博士
所在单位：力学与航空航天学院
学科：计算力学. 固体力学. 工程力学. 船舶与海洋结构物设计制造. 岩土与环境力学
办公地点：大连理工大学主校区海宇楼(1号实验楼)607室
联系方式：0411-84708683
电子邮箱：jisy@dlut.edu.cn
Coupled discrete-finite element analysis for ice-induced vibration of conical jacket platform based on GPUBased parallel algorithm
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论文类型：期刊论文
发表时间：2019-10-01
发表刊物：Gongcheng Lixue/Engineering Mechanics
收录刊物：EI、PKU
卷号：36
期号：10
页面范围：28-39
ISSN号：10004750
摘要：A coupled discrete element method (DEM) and finite element method (FEM) is developed to analyze the interaction between sea ice and conical jacket platforms. To model the ice cover and investigate ice loads, a DEM with bond-breaking spherical elements is adopted. Meanwhile, the FEM (with a beam element and flat shell element) is applied to model the ice-induced vibrations (IIVs) of a conical jacket platform. The graphics processing unit (GPU)-based parallel algorithm is developed to improve the computational scale and efficiency of the coupled model. An efficient transmission scheme between the bond-breaking spherical elements and the flat shell element based on GPU is proposed. Base on the proposed method, the simulated ice loads, IIVs and stress distributions are discussed and verified by comparing them with the full-scale data. This study provides a useful reference for the structure design of conical jacket structures in cold regions. ? 2019, Engineering Mechanics Press. All right reserved.