金星大气原位探测ChipSat入口可行性分析及初步设计
Feasibility Analysis and Preliminary Design of ChipSat Entry for In-situ Investigation of the Atmosphere of Venus
摘要：
最近，电子设备小型化，采用非常小、低成本和低功率的配置，适合用于航天器，这激发了创新的小型卫星概念，如ChipSats，即质量只有几克的厘米级卫星。这些非常小的航天器有可能开创一个空间科学无障碍的新时代。由于其低弹道系数，ChipSats可以潜在地用于群星座，用于对行星大气的扩展调查，提供具有高可靠性和冗余度的大量数据。我们提出了一个初步的可行性分析的ChipSat行星大气层进入任务的目的是寻找金星大气中的微观生命形式的痕迹。事实上，金星大气层的低云层可能是寻找微生物生命形式的好目标，这是由于有利的大气条件和微米级硫酸气溶胶的存在。模拟特定几何形状航天器进入行星的数值模型，适用于有足够大气数据的任何大气层，已得到实施和验证。研究结果被用来创建一个高层次的设计芯片卫星任务巡航在金星大气层中的高度有利于生命的存在。本文讨论了芯片卫星任务的概念和考虑的航天器初步设计在系统级，包括选择一个潜在的有效载荷。
英文摘要：
Recent miniaturization of electronics in very small, low-cost and low-power configurations suitable for use in spacecraft have inspired innovative small-scale satellite concepts, such as ChipSats, centimeter-scale satellites with a mass of a few grams. These extremely small spacecraft have the potential to usher in a new age of space science accessibility. Due to their low ballistic coefficient, ChipSats can potentially be used in a swarm constellation for extended surveys of planetary atmospheres, providing large amounts of data with high reliability and redundancy. We present a preliminary feasibility analysis of a ChipSat planetary atmospheric entry mission with the purpose of searching for traces of microscopic lifeforms in the atmosphere of Venus. Indeed, the lower cloud layer of the Venusian atmosphere could be a good target for searching for microbial lifeforms, due to the favourable atmospheric conditions and the presence of micron-sized sulfuric acid aerosols. A numerical model simulating the planetary entry of a spacecraft of specified geometry, applicable to any atmosphere for which sufficient atmospheric data are available, is implemented and verified. The results are used to create a high-level design of a ChipSat mission cruising in the Venusian atmosphere at altitudes favorable for the existence of life. The paper discusses the ChipSat mission concept and considerations about the spacecraft preliminary design at system level, including the selection of a potential payload.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
