季顺迎

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

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Computing Framework of Large-Scale Dilated Polyhedral DEM Particles Simulation Based on GPU

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论文类型:会议论文

发表时间:2016-08-01

收录刊物:EI、CPCI-S

卷号:188

页面范围:1361-1369

摘要:Dilated polyhedral element can accurately construct geometric shape of irregular particles, which can improve the accuracy of contact-impact computing remarkably. But the data structure of dilated polyhedral is more complex than sphere's, and there are always a huge amount of DEM particles need to be considered, so the calculation burden is heavy, and the computation process is very time-consuming. It has great practical significance to implement a computing framework of dilated polyhedral DEM particles simulation with high efficiency. This framework completes parallel computing acceleration of large-scale dilated polyhedral particles based on GPU by using CUDA. Loose coupling among different parts of computing framework enable it to support different mechanical models. From the perspective of user and adequate consideration of the characteristics of DEM calculation, UI interface which is implemented under QT platform is designed elaborately. OpenGL is used for visualization of calculation results. Tests of multiple sets of data show that this framework can effectively simulate and display scenarios of complex particles contact-impact process dynamically.