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[1]薛 杰,何尚龙,杜大华,等.充液容器流固耦合模态仿真分析研究[J].火箭推进,2015,41(01):90-97.
　XUE Jie,HE Shang-long,DU Da-hua,et al.Study on fluid-structure coupling modal simulation of liquid filling container[J].Journal of Rocket Propulsion,2015,41(01):90-97.
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充液容器流固耦合模态仿真分析研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 41 期数: 2015年01期 页码: 90-97 栏目: 研究与设计 出版日期: 2015-04-30
Title:
Study on fluid-structure coupling modal simulation of liquid filling container
作者:
薛 杰; 何尚龙; 杜大华; 李 锋
西安航天动力研究所，陕西 西安 710100
Author(s):
XUE Jie;  HE Shang-long;  DU Da-hua;  LI Feng
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
关键词:
流固耦合; 声固耦合法; 虚拟质量法; 模态分析
Keywords:
fluid-structure coupling;  coupled acoustic-structural analysis;  virtual fluid mass;  modal analysis
分类号:
V434-34
文献标志码:
A
摘要:
主要介绍目前容器类流固耦合模态分析最常用的两种计算方法：声固耦合法及虚拟质量法。从理论上分别对这两种方法进行分析，并指出它们之间的联系与区别：虚拟质量法采用了声固耦合法在不可压缩流体情况下的形式，并有所改进，即流体的作用完全由虚拟质量阵来体现，而流体的虚拟质量阵则通过具有解析解性质的边界元法获得。最后，通过开口方槽干状态、湿状态的无阻尼模态仿真分析研究，揭示出流体对结构模态特性影响的变化规律，同时指出了两种方法（虚拟质量法、声固耦合法）对结构湿模态计算结果有规律性的差异：随着振动频率的升高，不仅容器内流体对结构模态特性的影响在减小，分析湿模态的两种方法所得到的计算结果之间的差别也在逐渐减小。
Abstract:
Two conventional algorithms for fluid-structure coupling modal analysis of the liquid filling containers are mainly introduced in this paper. They are coupled acoustic-structural analysis (CASA) and virtual fluid mass (VFM). It points out the relation and difference between the two algorithms through the theory analysis. VFM adopts the incompressible liquid form that appears in CASA, in which some progress has been made, namely, the effect of the fluid is incarnated completely by virtual mass matrix, and the virtual mass matrix of the liquid is obtained by the boundary element method (BEM) with the property of analytic solution. Based on the study on the dry modes and the wet modes of one ringent box, the varying laws of influence of the liquid on the structure modal characteristics are revealed. At the same time, the study result indicates the well-regulated otherness between the wet modes results from the two methods (VFM and CASA): with increase in vibration frequency, not only the effect of liquid on the structure dynamic characteristic decreases gradually, but also the difference between the two methods decrease.

参考文献/References:

[1]王勖成. 有限单元法[M]. 北京: 清华大学出版社, 2003.
[2]邢景棠, 周盛, 崔尔杰. 流固耦合力学概述[J]. 力学进展, 1997, 27(1): 19-38.
[3]居荣初, 曾心传. 弹性结构与液体的耦联振动理论[M]. 北京: 地震出版社, 1983.
[4]谢志勇, 周其斗, 纪刚. 双层柱壳的流固耦合模态计算与实验研究[J]. 海军工程大学学报, 2009, 21(2): 97-101.

[5]张亮, 袁兆成, 黄震. 流固耦合有限元法用于油底壳模态计算[J]. 振动与冲击, 2003, 22(4): 100-101.

[6]刘文一, 李玉龙, 吴训涛, 等. 流固耦合作用下某双层结构燃料贮箱动力学特性分析[J]. 弹箭与制导学报, 2011, 31(5): 132-134.
[7]库克L D, 马尔库D S, 普利沙M E. 有限元分析的概念与应用[M]. 西安: 西安交通大学出版社, 2007.
[8]杨剑, 张璞, 陈火红. MD Nastran有限元实例教程[M]. 北京: 机械工业出版社, 2008.
[9]田利思, 李相辉, 马岳峰. MSC Nastran动力分析指南[M]. 北京: 中国水利水电出版社, 2012.

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备注/Memo

收稿日期：2014-08-06；修回日期：2014-09-26 作者简介：薛杰（1983—），男，硕士，研究领域为结构强度与振动分析，流固耦合动力学

更新日期/Last Update: 1900-01-01