用蒙特卡罗方法求解航天器的有效太阳辐照面积  

SOLVING EFFECTIVE SUN INCIDENT AREAS OF SPACECRAFT BASED ON MONTE CARLO METHOD

作　　者：刘阳[1] 黄本诚[1] 

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2005年第3期132-136,共5页Spacecraft Environment Engineering

摘　　要：文章利用蒙特卡罗射线踪迹方法,建立复杂几何构型航天器在遭受太阳辐照下辐照面积的数学模型,对KFTA小太阳模拟器内太阳光入射条件下的航天器辐照面积进行数值模拟,解决了温度场求解中太阳对航天器表面直接投射的关键问题。计算结果表明：此方法提出了求解太阳入射辐射的新思路,将原来复杂的解析过程简化为几个概率模型。A mathematical model on solving sun incident areas of spacecraft with complex geometry structure is established based on Monte Carlo-ray tracing method in the paper.The sun incident areas of spacecraft subjected to sun radiation from KFTA solar simulator are simulated numerically.The model settles the key problems of sun direct incidence on spacecraft surface in course of calculating temperature field.The results show that it is a new way of solving the sun incident radiation with clarity concepts and accurate results characters by means of simplifying a series of complicated analytic process into some probability models.

关 键 词：蒙特卡罗-射线踪迹法 航天器 太阳辐照面积 数值模拟 

分 类 号：O242.2[理学—计算数学] V524.2[理学—数学]