首页> 外文OA文献 >Assessment of simulating underwater impact using the ICFD solver in LS-DYNA

【2h】

Assessment of simulating underwater impact using the ICFD solver in LS-DYNA

机译：使用Ls-DYNa中的ICFD求解器模拟水下冲击的评估

页面导航

摘要
著录项
相似文献
相关主题

摘要

This thesis demonstrates that although the ICFD solver of LS-DYNA is a practical tool that can precisely model fluid and structure interaction, it is not effective for simulating the underwater impact of two objects. A numerical model was developed using the ICFD solver to simulate the submerged impact of a structure and ice at model scale. The numerical results were compared with physical experiments conducted in the laboratory. This thesis reveals that a water mesh exists between the structure and the ice model on contact, which leads to the incorrect calculation of pressure at the ice-structure contact points and causes incorrect impact force.udThis thesis also proposes a method to verify that the peak impact force of two objects in the water equals the peak impact force of the same objects in air with equivalent artificial added mass and velocity.

机译：本文证明，尽管LS-DYNA的ICFD求解器是可以精确地模拟流体和结构相互作用的实用工具，但它不能有效地模拟两个物体的水下撞击。使用ICFD求解器开发了一个数值模型，以模型规模模拟结构和冰的淹没冲击。将数值结果与实验室进行的物理实验进行了比较。结果表明，结构与冰模型接触时存在水网，导致冰结构接触点压力计算不正确，造成冲击力不正确。 ud本文还提出了一种验证冰结构接触点的方法。在相等的人工增加的质量和速度下，水中两个物体的最大冲击力等于空气中相同物体的最大冲击力。

著录项

作者
Gao Xiaoli;
展开▼
作者单位

展开▼
年度 2016
总页数
原文格式 PDF
正文语种
中图分类

相似文献

外文文献
中文文献
专利

1. Application of LS-DYNA Constitutive Material Model Laws to Simulate Low Velocity Impact Damage to Composite Plates [J] . Rossi T. A., Fayazbakhsh K., Fawaz Z. Journal of aerospace engineering . 2020,第6期

机译：LS-DYNA构成材料模型规范在复合板上模拟低速冲击损伤的应用
2. UNDERWATER NOISE MEASUREMENTS AND ASSESSMENTS OF IMPACTS TO MARINE LIFE FOR WASHINGTON STATE FERRIES [J] . Jesse Spence, Zachary Weiss, Ben Bonnice, The Naval Architect . 2021,第Apra期

机译：对华盛顿州渡轮的水下噪声测量和对海洋生物的影响评估
3. Simulating cold season snowpack: impacts of snow albedo and multi-layer snow physics. (Special Issue: California second assessment: new climate change impact studies and implications for adaptation.) [J] . Waliser D., Kim J., Xue Y., Climatic Change . 2011,第Suppla1期

机译：模拟寒冷季节的积雪：积雪反照率和多层积雪物理的影响。（特刊：加利福尼亚第二次评估：新的气候变化影响研究及其对适应的影响。）
4. LS-DYNA 980: Recent Developments, Application Areas and Validation Process of the Incompressible fluid solver (ICFD) in LS-DYNA - Part 2 [C] . Inaki Caldichoury, Facundo Del Pin International LS-DYNA Conference . 2012

机译：LS-DYNA 980：LS-DYNA不可压缩流体求解器（ICFD）的最新发展，应用领域和验证过程 - 第2部分
5. Prior learning assessment: Impact of APL portfolio development on problem-solving skills and knowledge organization. [D] . LeGrow, Maryanne Roy. 2000

机译：事先学习评估：APL项目组合开发对解决问题的技能和知识组织的影响。
6. Assessment in pediatrics clerkships: impact of strategies to solve item-sharing problems [O] . Gabriel Faria-Costa, Milton Severo, Maria Amélia Ferreira, 2018

机译：儿科业务评估：解决项目共享问题的策略的影响
7. Simulating Hydrological Impacts under Climate Change: Implications from Methodological Differences of a Pan European Assessment [O] . Aristeidis Koutroulis, Lamprini Papadimitriou, Manolis Grillakis, 2018

机译：在气候变化下模拟水文影响：泛欧洲评估方法论差异的影响

Assessment of simulating underwater impact using the ICFD solver in LS-DYNA

摘要

著录项

相似文献

相关主题

期刊订阅