科技报告详细信息
Two-Dimensional Planetary Surface Landers
Hemmati, Hamid ; Willis, Peter ; Roberts, Tom ; Castillo, Julie ; Sengupta, Anita ; McElrath, Tim
关键词: DATA ACQUISITION;    TWO DIMENSIONAL BODIES;    PLANETARY SURFACES;    RISK;    ROBOTICS;    ROVING VEHICLES;    FORM FACTORS;    HABITABILITY;    PLANETARY GEOLOGY;    SOLAR SYSTEM;   
RP-ID  :  HQ-E-DAA-TN62840
学科分类:航空航天科学
美国|英语
来源: NASA Technical Reports Server
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【 摘 要 】

We proposed to develop a new landing approach that significantly reduces development time and obviates the most complicated, most expensive, and highest-risk phase of a landing mission. The concept is a blanket- or carpet-like two-dimensional (2D) lander (~1-m × 1-m surface area and <1-cm thick) with a low mass/drag ratio, which allows the lander to efficiently shed its approach velocity and provide a more robust structure for landing integrity. The form factor of these landers allows dozens to be stacked on a single spacecraft for transport and distributed en masse to the surface. Lander surfaces will be populated on both sides by surface-mount, low-profile sensors and instruments, surface-mount telecom, solar cells, batteries, processors, and memory. Landers will also incorporate thin flexible electronics, made possible in part by printable electronics technology. The mass and size of these highly capable technologies further reduces the required stiffness and mass of the lander structures to the point that compliant, lightweight, robust landers capable of passive landings are possible. This capability avoids the costly, complex use of rockets, radar, and associated structure and control systems. This approach is expected to provide an unprecedented science payload mass to spacecraft mass ratio of approximately 80% (estimated based on current knowledge). This compared to ~1% for Pathfinder, ~17% for MER, and 22% for MSL rovers. Clearly, one difference is rovers vs. a lower capability lander. An outcome of the Phase I study is a clear roadmap for near-term demonstration and long-term technology development.

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