首页 | 本学科首页   官方微博 | 高级检索  
     检索      

深海采矿柔性立管系统非线性有限元模拟
引用本文:佟莹,夏健.深海采矿柔性立管系统非线性有限元模拟[J].计算力学学报,2022,39(1):129-134.
作者姓名:佟莹  夏健
作者单位:南京航空航天大学 航空学院, 南京 210016
摘    要:在海洋环境载荷及集矿机牵引作用下,深海采矿柔性立管系统的动力学响应涉及几何非线性和非保守载荷的双重非线性源.基于三维固体有限变形理论建立数学模型,在完全拉格朗日格式下推导了系统运动平衡方程,针对非保守载荷的等效计算、非线性切线刚度矩阵及非线性方程的数值求解等关键问题提出了有效处理方案.根据处理方案开发了数值计算程序,并...

关 键 词:海洋柔性管道  几何非线性  非保守载荷  非线性有限元分析  张量体系
收稿时间:2020/11/27 0:00:00
修稿时间:2021/3/5 0:00:00

Nonlinear finite element simulation of Flexible riser system in Deep Sea Mining
TONG Ying,XIA Jian.Nonlinear finite element simulation of Flexible riser system in Deep Sea Mining[J].Chinese Journal of Computational Mechanics,2022,39(1):129-134.
Authors:TONG Ying  XIA Jian
Institution:School of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Abstract:The dynamic response of a flexible riser system in deep-sea mining involves dual nonlinear sources of geometric nonlinearity and non-conservative loads, due to the marine environmental load and the traction of the mining machine.Based on the finite deformation theory three-dimensional solid, a mathematical model of a flexible riser system is established.The governing equations of the system are derived under the total Lagrangian format.Effective treatment schemes are proposed for key issues such as the equivalent calculation of non-conservative loads, nonlinear tangent stiffness matrix and numerical solution of nonlinear equations.A numerical calculation program was developed according to the treatment scheme, and it was applied to the static and dynamic analysis of the flexible riser system.Numerical results show that the developed program has a superior capability of analysis and prediction for the nonlinear response of the flexible riser system, which verifies the practicability of the theory and model in this paper.
Keywords:submarine flexible pipeline  geometrically nonlinear  nonconservative loads  nonlinear finite element analysis  tensor system
本文献已被 维普 等数据库收录!
点击此处可从《计算力学学报》浏览原始摘要信息
点击此处可从《计算力学学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号