Preliminary design study of solar probe heat shields
Preliminary design study of solar probe heat shields
复制标题
太阳探测器隔热罩的初步设计研究
DOI：
10.2514/6.1981-352
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
C. Park
中科院分区：
文献类型：
--
作者：
C. Park
分析了太阳探测器热屏蔽系统的要求、约束条件、设计准则和预期性能。一个多级，不对称，直角辐射叶栅配置被用作比较的基础。输出到输入的辐射通量比首先计算系统采用灰色表面。假设有效载荷总线的内表面的温度被允许达到400 K，它示出，四级和五级级联系统采用石墨可以接近，分别在约5.5和4太阳半径的太阳。系统使用粉浆铸造二氧化硅和钨，然后分析占太阳风引起的表面光学性能的退化。它表明，两个和三个阶段的硅钨系统可以接近，分别在4和3太阳半径的太阳。
The requirements, constraints, design guidelines, and expected performances of heat-shield systems for a solar probe are analyzed. A multiple-stage, asymmetric, right-angle radiation cascade configuration is used as the basis for comparison. Output-to-input radiative flux ratios are first calculated for a system employing gray surfaces. Assuming that the temperature of the inner surface of the payload bus is allowed to reach 400 K, it is shown that four- and five-stage cascade systems employing graphite can approach, respectively, to within about 5.5 and 4 solar radii of the sun. The systems using slip-cast silica and tungsten are then analyzed accounting for the degradation of surface-optical performance caused by the solar wind. It is shown that two- and three-stage silica-tungsten systems can approach, respectively, to within 4 and 3 solar radii of the sun.