摘要
随着弹载平台飞行时间越来越长,速度越来越快,使用普通的热设计措施,如利用器件或结构自身的热容来延缓核心器件温度上升的做法已经越来越不适用。文中对使用膨胀石墨PCM(相变材料)的弹载相变热沉进行了参数化建模及分析,利用Ansys Workbench的DM(Design Modeler)参数化分析流程,使用Icepak并结合虚拟比热法进行了计算,得出了影响某实际工程中PCM热沉效能的几个相关参数及其最优值。
As the flying time and speed of missile increase, traditional methods such as using the structure＇s own heat capacity to absorb the dissipated heat and control the temperature increase of core electronic components had met dilemma. This paper carries out parameterized modeling and analysis for missile platform phasechange heatsink using composite paraffin expanded graphite PGM （phase change matenal）. everal relevant parameters affecting the heatsink efficiency of a Practical project and their optimized values are calculated by using the parameterized analysis flow of DM（ Design Modeler） of Ansys Workbench and using Icepak and the method of virtual specific heat capacity.
出处
《电子机械工程》
2013年第3期44-49,共6页
Electro-Mechanical Engineering
关键词
相变材料
膨胀石墨
优化设计
虚拟比热法
phase change material
composite paraffin expanded graphite
optimization design
method ofvirtual specific heat capacity
