北京航空航天大学学报 ›› 2000, Vol. 26 ›› Issue (1): 5-7.

• 论文 • 上一篇    下一篇

PCB及元件的温度场有限元分析

李晓明, 吕善伟, 高泽溪   

  1. 北京航空航天大学 电子工程系
  • 收稿日期:1998-06-10 出版日期:2000-01-31 发布日期:2010-09-27
  • 作者简介:李晓明(1970-),女,江苏常州人,博士生,100083,北京.
  • 基金资助:

    国家部委基金资助项目

FiniteElement Analysis of Temperature Field of PCB and Components

LI Xiao-ming, Lü Shan-wei, GAO Ze-xi   

  1. Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering
  • Received:1998-06-10 Online:2000-01-31 Published:2010-09-27

摘要: 首先简要介绍了一下热传输原理,而后应用有限元探索了双列直插式元件及印制电路板(PCB)的二维和三维稳态热传输,通过计算实例的温度场分布对两种方式作比较,并通过点测进行实验研究,计算与实验测量相吻合,给出结论, 有限元三维模拟比二维模拟更为复杂,但得到的信息更为详细.

Abstract: Heat transfer was introduced. The finite-element method (FEM) is used to investigate steady-state two and three-dimensional heat transfer in dual-in-line component and PCB. Two methods are compared through real examples' temperature distribution. And experiments with point test method are done to compare with the results of calculated and results are much in accord with each other. Conclusion is also given that three-dimensional finite-element method is more complex and with it more particular messages could be obtained.

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