机车大功率半导体散热器稳态热阻的有限元分析  

Finite element analysis on steady-state thermal resistance of heat sink of power semiconductors for locomotive

作　　者：张劲松[1] 

机构地区：[1]株洲电力机车研究所,湖南株洲412001

出　　处：《机车电传动》2000年第6期31-33,38,共4页Electric Drive for Locomotives

摘　　要：介绍了散热器热分析的基本方法 ,比较了两种常用的数值分析方法——有限单元法和有限差分法 ,应用有限元方法对 SS8机车半导体散热器的稳态热分布进行了简要的分析 ,简化了试验过程 ,提高了热效率。Thermal analysis method of heat sink is introduced. Two numerical analysis methods, finite element method and finite difference method, are compared. The finite element method is applied to briefly analysis on steady state thermal distribution of the heat sink of power semiconductors for SS8 locomotive.The test process is simplified and the thermal efficency is improvement.

关 键 词：机车 散热器 稳态热阻 有限元法 有限差分法 

分 类 号：U264.37[机械工程—车辆工程] O551.3[交通运输工程—载运工具运用工程]