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首页> 外文会议>55th International Astronautical Congress 2004 vol.10 >LMG. A MULTI-SCENARIO SAMPLE RETURN MISSION TO MARS
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LMG. A MULTI-SCENARIO SAMPLE RETURN MISSION TO MARS

机译：LMG。火星的多场景样本返回任务

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摘要

This is addressed to introduce some new design concepts for a Multi-scenario Sample Return Mission to Mars under ESA's Aurora Programme. The interest of a sample return mission is very high for any Space Programme aimed to Mars exploration. A multi-scenario mission, which would collect samples from several locations on Mars, would be of highest interest, as it would represent more advantages to learn from different points of Mars. Such a mission requires nowadays a large and complex vehicle able to fulfil various hops in Mars and return samples to Earth. In this paper it is introduced the use of in-situ resources as the best solution for this kind o mission. The mission objectives are defined and analysed, and it is discussed the selection of a spacecraft composed by two vehicles: Mars orbiter and Mars Lander. The landing sites have been chosen for it's scientific interest, and this chosen sites are used to better understand the requirements of an In-Situ Resources Utilisation, ISRU, rocket engine. The performance characteristics of the CO_2-metal rocket engine is defined, showing the advantage of the Mg-CO_2 rocket engine for this mission. Finally, for a second stage of the ascent vehicle, several propulsion concepts where discussed, finally choosing an ammonia arc-jet ionic thrusters.
机译：解决这个问题的目的是为ESA的Aurora计划下的多场景火星返回任务引入一些新的设计概念。对于任何旨在进行火星探测的太空计划，样品返回任务的兴趣都很高。一项多情景任务将从火星的多个位置收集样本，这将是最受关注的，因为从火星的不同点学习将代表更多优势。如今，这样的任务需要大型且复杂的运载工具，该运载工具能够完成火星上的各种跃变并将样本返回地球。本文介绍了使用现场资源作为此类任务的最佳解决方案。定义和分析了任务目标，并讨论了选择由两种飞行器组成的航天器：火星轨道器和火星着陆器。选择着陆点是出于科学兴趣，选择这些着陆点是为了更好地了解现场资源利用ISRU火箭发动机的要求。定义了CO_2金属火箭发动机的性能特征，显示了Mg-CO_2火箭发动机在此任务中的优势。最后，对于上升式运载工具的第二阶段，讨论了几种推进概念，最后选择了氨弧喷射离子推进器。

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