航天器DC/DC变换器热分析研究  

Thermal analysis of spacecraft DC/DC converters

作　　者：艾华斌[1] 王卫国[1] 袁亚飞[1] 

机构地区：[1]兰州空间技术物理研究所,甘肃兰州730000

出　　处：《现代电子技术》2013年第18期35-38,共4页Modern Electronics Technique

摘　　要：为了解决航天器DC/DC变换器的热可靠性问题,利用有限元分析软件ANSYS对实际的航天器DC/DC变换器进行热仿真分析,得到了其内部的温度分布特性。并对其进行了红外成像测试实验,通过红外成像测试结果与仿真分析结果对比分析,验证了热仿真的准确性。使用有限元分析方法为航天器DC/DC变换器合理热设计提供了依据,也为同类电子设备的热设计提供了一种思路。In order to improve the thermal reliability of spacecraft DC/DC converters,the finite element analysis software（ANSYS）was used to conduct the thermal simulation and analysis for the actual spacecraft DC/DC converters,by which the internal temperature distribution of spacecraft DC/DC converters was obtained.Furthermore,the infrared imaging testing experiment was performed for the DC/DC converters.the accuracy of the thermal simulation was verified by comparing the simulation analysis result with the infrared imaging testing result.The finite element analysis is adopted in this paper to provide an evidence for rationality of thermal design of spacecraft DC/DC converters,and a method for the thermal design of similar electronic equipments.

关 键 词：DC DC变换器 有限元法 热设计 热分析 

分 类 号：TN911-34[电子电信—通信与信息系统]