摘要
热传导以及热问题是航天器以及内部有效载荷在工作时必须注意的问题。为了计算出航天器系统的温度分布,进行温度影响的分析,主要研究了热传递过程以及热传递在航天器中的实际数学模型,进行热分析计算的几种数值方法,并对热网络模型计算法和有限元模型计算法做了详细的论述。通过上述方法计算出了整个系统的温度分布,对后续的航天器热控提供了可靠的依据。
Thermal conductivity and thermal issue are inevitable problems in spacecraft and its payload while working.In order to give out the temperature distribution and carry out analysis for temperature effect,the common heat transfer process and actual mathematic model of the heat transfer in spacecraft are introduced.Several numerical methods for thermal analysis and calculation are specialized and thermal network method and finite element method are discussed in detail.The whole system＇s temperature distribution calculated through these methods offers a reliable basis for spacecraft heat control.
出处
《计算机仿真》
CSCD
北大核心
2010年第1期60-62,共3页
Computer Simulation
关键词
热分析
航天器系统
热网格模型
有限元法
Thermal analysis
Spacecraft system
Thermal network model
Finite element method
