基于APDL和UIDL的ANSYS二次开发技术及应用室内LED射灯热分析
针对LED热分析的特点，为了实现操作程序化、可视化、简洁化和通用化，利用UIDL设计出LED射灯的分析界面。定制主菜单，包括几何模型、材料定义、载荷和边界条件以及加载和显示。为了实现菜单项的功能，利用APDL对LED射灯几何模型及物理参数进行设定。
针对特定的LED射灯，利用所编程序完成了对四种不同基板材料的对比研究。通过分析各个模型的温度分布，在所选基板材料中，找到了使结温和热阻最低的材料—— 。
最后，提出新式改进方案——液体对流散热壳。经过从新式散热壳I到III的改进，最后设计出兼具光学和热力学优势的新式散热壳III。19587
关键词 LED 热分析 ANSYS二次开发 APDL UIDL
毕业论文外文摘要
Title Secondary Development and Application of ANSYS Base on APDL and UIDL-- Indoor LED Spotlight Thermal Analysis
Abstract
As a kind of green light source，development and application of LED technology is troubled by heat dissipation. Especially for high-power LED, the heat dissipation has become an extremely important issue. And thermal analysis needs the software of ANSYS.
Considering the characteristic of LED thermal analysis, and in order to achieve the operation sequencing, visual, simple and universal, I design a main menu including geometrical model, material definition, load and boundary, load and display. In order to achieve the function of the menu item, I set the parameters of geometric model and physical property by APDL.
For a certain type of LED, I completed the comparative study of four kinds of substrate materials by using the program of mine. I found the material which makes the lowest of junction temperature and thermal resistance.
Finally, I propose a new scheme which has the advantage of optical and thermodynamic at the same time.
Keyword LED thermal analysis ANSYS secondary development APDL UIDL
目次
1 绪论 3
2. 利用UIDL设计LED射灯的分析界面 3
2.1 UIDL设计的程序结构 3
2.1.1 控制文件头 3
2.1.2结构块结构 3
2.1.3 ANSYS调用UIDL过程 4
2.2 LED分析的UIDL设计 5
2.2.1主菜单定制 5
2.2.2菜单项功能实现 7
3. 利用APDL对LED射灯几何结构及物理参数设定 11
4. 室内LED射灯具体散热模拟计算 13
4.1 倒装LED芯片简介 13
4.2倒装LED芯片热分析 17
4.2.1散热基板1 17
4.2.2散热基板2 17
4.2.3 散热基板3 20
4.2.4散热基板4 21
5. 结果分析 21
6. 改进散热结构 22
6.1传统改进方式： 22
6.2新式改进方式 23
6.2.1新式散热壳I 24
6.2.2新式散热壳II 25
6.2.3新式散热壳III 27
7. 总结及展望 29
7.1总结 29
7.2展望 30
致 谢 31
参考文献31
附录 34
附录A： 34
附录B： 34
附录C： 35
附录D： 35
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