月表地形環(huán)境對(duì)著陸器熱控系統(tǒng)的影響分析

The effects of lunar landforms on lunar landing vehicle’s thermal control systems

摘要: 月球著陸器著陸月表之后的外熱流環(huán)境與地球軌道衛(wèi)星外熱流環(huán)境的最大區(qū)別在于月表紅外熱流的影響。分析月表地形特征是確定月表紅外熱流影響范圍的基礎(chǔ)。文章根據(jù)調(diào)研分析選擇了月海地區(qū)可能存在的平坦月表、斜坡、石塊和撞擊坑4種典型地形特征以及月表的熱物性參數(shù)，并通過計(jì)算分析得出了月表地形對(duì)著陸器熱控系統(tǒng)的一些影響規(guī)律——其中平坦月表和斜坡的影響最大，石塊和小型撞擊坑的影響可以忽略，大型撞擊坑可以等效為斜坡的影響。

Abstract: The essential difference between the thermal environment on the lunar surface and that in the earth-orbit is the influence of lunar infrared heat flow. The analysis of the lunar topographical characteristics is the basis for determination of the infrared influence of the lunar surface. Four kinds of typical lunar landforms are selected in the lunar maria, together with the corresponding thermo-physical parameters. Conclusions are drawn through calculation and analysis on the effects of the lunar landforms on the thermal control systems of lunar landing vehicles. It is shown that flat lunar surfaces and slopes have the largest influence; the influence of rocks and small craters can be ignored while large craters behave similar to the slopes.