[1]丁杰,唐玉兔.模型降阶方法在瞬态热仿真中的应用[J].机车电传动,2014,(05):51-55.[doi:10.13890/j.issn.1000-128x.2014.05.103]
 DING Jie,TANG Yutu.Application Research of Model Order Reduction Method in Transient Thermal Simulation[J].Electric Drive for Locomotives,2014,(05):51-55.[doi:10.13890/j.issn.1000-128x.2014.05.103]
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模型降阶方法在瞬态热仿真中的应用()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2014年05期
页码:
51-55
栏目:
研究开发
出版日期:
2014-09-10

文章信息/Info

Title:
Application Research of Model Order Reduction Method in Transient Thermal Simulation
文章编号:
1000-128X(2014)05-0051-05
作者:
丁杰唐玉兔
南车电气技术与材料工程研究院
Author(s):
DING Jie TANG Yutu
CSR Research of Electrical Technology & Material Engineering,
关键词:
模型降阶瞬态热仿真计算流体力学有限元法Krylov子空间
Keywords:
model order reduction transient thermal simulation CFD finite element method Krylov subspace
分类号:
TB657.5;TM46
DOI:
10.13890/j.issn.1000-128x.2014.05.103
文献标志码:
A
摘要:
为解决有限元法计算瞬态热仿真问题需要消耗大量计算机资源的问题,基于瞬态热传导方程和模型降阶方法,通过计算流体力学方法和有限元法提取IGBT风冷散热器的模型数据,再利用Krylov子空间投影法缩聚自由度建立降阶模型并求解。仿真结果对比分析表明,此方法建立的降阶模型可以准确反映物理场的特性,不仅满足精度要求,还能极大地降低计算复杂度,提高计算速度。
Abstract:
To solve the problem of transient thermal simulation consuming a large amount of computer resources, model data of IGBT air-cooled radiator based on transient heat conduction equation and model order redution method were extracted by computational fulid dynamic method and finite element method. The condensation degree of freedom of reduced order model was set up by using Krylov subspace projection method and then calculated. The simulation results indicated that the reduced order model could accurately reflect the characteristics of physical fields, the model order reduction method could not only meet the accuracy requirement, also can greatly reduce the computational complexity and improve the calculation speed.

参考文献/References:

[1] 关乐,褚金奎,齐东周,等. 基于二阶Kr ylov子空间投影法建立MEMS宏模型[J]. 功能材料与器件学报,2008,14(1) : 210-214.
[2] Wilhelmus H A S, Henk A V, Joost R. Model Order Reduction: Theory, Research Aspects and Applications[M]. Berlin: Springer, 2008.
[3] 蒋耀林. 模型降阶方法[M]. 北京:科学出版社,2010.
[4] 关乐,褚金奎,齐东周,等. 面向MEMS系统级仿真的宏模型研究[J]. 系统仿真学报,2009,21(15) :4561-4567.
[5] Rudnyi E B, Korvink J G. Model Order Reduction for Large Scale Engineering Models Developed in ANSYS[J]. Lecture Notes in Computer Science, 2006(3732) :349-356.
[6] 齐东周,褚金奎,关乐. MEMS降阶宏模型仿真平台研究[J]. 微计算机信息,2009,25(3) :185-187.
[7] 王勖成. 有限单元法[M]. 北京:清华大学出版社,200 3, 441-461.
[8] 杨世铭,陶文铨. 传热学[M]. 第4版. 北京:高等教育出版社,2006.
[9] 齐东周. 基于降阶宏模型的MEMS 系统级仿真平台研究[D]. 大连:大连理工大学,2008.
[1 0]丁杰,唐玉兔,忻力,等. 网格尺寸对IGBT水冷散热器仿真结果的影响[J]. 大功率变流技术,2012(6) :26- 30 .
[11]Liu J W H. The Multifrontal Method for Sparse Matrix Solution: Theory and Practice[J]. SIAM Rev., 1992,34:82-109.
[1 2]李伟剑. 微机电系统的多域耦合分析与多学科设计优化[D]. 西安:西北工业大学,2004.

备注/Memo

备注/Memo:
作者简介:丁杰(1979- ),男,硕士,高级工程师,现主要从事变流器结构仿真和热仿真的科研工作。
收稿日期:2014- 02- 10
基金项目:湖南省自然科学省市联合基金项目(1 2J J8 0 2 0)
更新日期/Last Update: 2014-09-10