| 摘要: |
| 火星进入、下降与着陆技术(entry,descent and landing,EDL)是火星着陆探测最为关键的环节。火星与地球再入返回过程相比,由于火星大气成分、物理性质与地球大气存在较大差别,且具有较大不确定性,使火星EDL过程历经时间短、状态变化快,对减速性能要求高,时序紧张。从工程实现角度分阶段开展了任务分析,识别了火星EDL环节面临的问题和挑战,提出了关键环节技术途径选择。 |
| 关键词: 火星 着陆 任务分析 技术途径 |
| DOI：10.15982/j.issn.2095-7777.2016.02.004 |
| 分类号: |
| 基金项目: |
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| Analysis and Design for the Mars Entry， Descent and Landing Mission |
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RAO Wei, SUN Zezhou, MENG LinZhi, WANG Chuang, JI Long
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Beijing Institute of Spacecraft System Engineering, Beijing 100094, China
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| Abstract: |
| Entry, Descent and Landing (EDL) is the most pivotal phase for Mars landing exploration. Compared to the Earth reentry, EDL process of Mars has some similitudes. However, the composition and physical characteristics of Mars atmosphere have much discrepancy with earth atmosphere, and it has quite great uncertainty. As a result, this makes the Mars EDL process quite short and changeable, which requires high deceleration ability and makes a tough scheduling. With consideration of project realization, the problems and challenges of Mars EDL process are identified, also the technical solutions of the pivotal phase are proposed. |
| Key words: Mars landing mission analysis technical solutions |
