具有内域的双层加筋圆柱壳动响应特性

肖巍; 张阿漫; 汪玉

doi:10.6052/0459-1879-13-196

具有内域的双层加筋圆柱壳动响应特性

doi: 10.6052/0459-1879-13-196

1.
哈尔滨工程大学船舶工程学院, 哈尔滨150001
2. 中国人民解放军92857 部队, 北京100161

基金项目: 国家安全重大基础研究项目（613157）；国家自然科学基金优秀青年项目（51222904）和国家自然科学基金面上项目（51279038）资助.

详细信息

作者简介:
张阿漫，教授，主要研究方向：流固耦合，结构动力学，气泡动力学.

中图分类号: O383.1;U661.43
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- 被引次数: 0
出版历程
- 收稿日期: 2013-06-25
- 修回日期: 2013-10-09
- 刊出日期: 2014-01-18

DYNAMIC RESPONSE OF DOUBLE RING-STIFFENED CYLINDRICAL SHELL WITH INTERNAL FLUID

1.
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
2. Unit 92857 of PLA, Beijing 100161, China

Funds: The project was supported by the National Security Major Basic Research Program of China (613157), the Outstanding Youth Fund of China (51222904) and the National Natural Science Foundation of China (51279038).

摘要

摘要: 采用外域双渐近法模拟外部流体域，内域双渐近法模拟内部流体域，采用非线性有限元软件ABAQUS 模拟结构，建立流固耦合数值模型并验证了其有效性. 利用建立的数值模型研究内部流体对双层加筋圆柱壳动响应的影响. 研究结果表明：一阶双渐近的解在中后期振荡周期变短、幅值变小，而二阶双渐近的解与解析解吻合良好；内部流体的存在减弱了双层加筋圆柱壳外壳的塑性变形，对其内壳塑性变形的影响较小；内部流体的存在减弱了双层加筋圆柱壳的速度响应.
- 双渐近 /
- 内域 /
- 流固耦合 /
- 水下爆炸 /
- 动响应
Abstract: In this paper, a numerical model on fluid-structure interaction is established and the validation of the model is carried out. The doubly asymptotic approximation for external domain is used to model the external fluid, the doubly asymptotic approximation for internal domain is used to model the internal fluid and the nonlinear finite element software ABAQUS is employed to model the structure. Based on the numerical model, the influence of internal fluid to the dynamic response of double ring-stiffened cylindrical shell is investigated. The main results are as follows. Compared with the analytic solution, the oscillation period and amplitude of late time response obtained by the first order doubly asymptotic approximation decrease. But, the solution of the second order doubly asymptotic approximation agrees well with the analytic solution. The existence of internal fluid makes the plastic deformation and velocity response of double ring-stiffened cylindrical shell decrease.
- doubly asymptotic approximation /
- internal fluid /
- fluid-structure interaction /
- underwater explosion /
- dynamic response

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