某机载光电系统风冷散热翅片优化设计及仿真  

Optimized design and simulation of air cooled heat dissipation fines for an airborne optoelectronic system

作　　者：李书培 孙冬明 张赛 胡建飞 石彰[1] LI Shu-pei;SUN Dong-ming;ZHANG Sai;HU Jian-fei;SHI Zhang(The 11th Research Institute of CETC,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第十一研究所,北京100015

出　　处：《激光与红外》2024年第6期951-957,共7页Laser & Infrared

摘　　要：针对机载密闭空间电子组件散热问题,对被动风冷翅片散热器进行了设计优化及仿真分析。首先基于正交实验设计方法以翅片厚度、翅片间距以及翅片高度为分析因素设计了三因素四水平正交实验;基于CFD数值仿真方法对不同翅片形式的散热器进行了仿真分析;最后基于极值分析对各因素对散热器散热性能的影响显著程度进行了分析。结果表明,翅片高度对散热器性能影响最大,翅片间距次之,翅片厚度影响最小,并得到了最优的翅片形式。In this paper,the design optimization and simulation analysis on passive air cooled finned heat sinks is carried out for the heat dissipation issue of electronic components in the enclosed spaces of airborne.Firstly,a three factor,four level orthogonal experiment is designed based on the orthogonal experimental design method,which takes fin thickness,fin spacing and fin height into account.Then,CFD numerical simulation method is used to simulate and analyze heat sinks with different fin forms.Finally,the significance of the influence of various factors on the heat dissipation performance of the radiator is analyzed based on the extreme value analysis.The results show that the fin height has the greatest impact on the performance of the radiator,followed by the fin spacing and the fin thickness,and the optimal fin form is obtained.

关 键 词：翅片散热器 数值分析 正交试验 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TH74[自动化与计算机技术—计算机科学与技术]