Automated FE Analysis for Heat Sink of LED Modules

Abstract:

This paper describes an automatic finite element (FE) mesh generation for FE analysis of LED modules. It is consisting of element generation, bubble packing and solid geometry modeler. This automated FE analysis system including bubble packing method consists of three sub-processes: (a) definition of geometric model, i.e. analysis model, (b) generation of bubbles, and (c) generation of elements. One of commercial solid modelers is employed for three-dimensional solid structures. Bubble is generated if its distance from existing bubble points is similar to the bubble spacing function at the point. The Delaunay method is introduced as a basic tool for element generation. The developed system allows designers to evaluate detailed physical behaviors of structures through some simple interactive operations to their geometry models. To demonstrate practical performances of the present system, the system was used to an analysis of heat sink. Practical performances of the present system are demonstrated through several examples for heat sink of LED modules.

• Periodical: Applied Mechanics and Materials (Volume 302)
• Pages: 765-771
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.302.765
• Online since: February 2013
• Authors: Joon Seong Lee, Dong Keun Park, Youn Jong Choi
• Keywords: Bubble Packing, Finite Element Method (FEM), Heat Sink, LED, Thermal Analysis

References

[1] J.S. Lee, J. of KAIS, Vol. 13-8 (2012), p.3295.

[2] J.S. Lee and H.J. Lee, J. of Mechanical Science and Technology, Vol. 24-9 (2010), p.1875.

[3] C.S. Krishnamoorthy and K. Rajeshirke, Computers and Structures, Vol. 48-1 (1993), p.121.

[4] J.S. Lee, Doctoral Thesis, The University of Tokyo (1995).

[5] J.H. Lim and S.J. Park, Kor. J. Mater. Res., Vol. 19-8 (2009), p.417.

[6] E.C. Lee and J.S. Lee, J. of KIIS, Vol. 19-2 (2009), p.230.

[7] K. Shimada, A. Yamada and T. Itoh, Proc. 6th Int. Meshing Roundtable, Sandia National Lab. (1997), p.375.