共查询到15条相似文献,搜索用时 171 毫秒
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我国探月工程四期拟在月球南极开展着陆探测,目标之一是对月球永久阴影坑内的含冰月壤冻土进行采样和原位分析。根据对月壤采样分析技术特点和永久阴影坑环境条件的分析和总结,认为采样方案需要具有月壤冻土高效钻进、重复使用多点采样和获取碎屑形态样品的能力,由此提出使用深槽螺旋钻以回转冲击钻进模式进行月壤冻土采样的方案。从提高钻进能力、保证采样能力2个方面对深槽螺旋钻结构和作业规程的关键参数进行识别、分析与设计。使用CUG-1A模拟月壤,对钻具的钻进能力和采样能力进行解耦性试验验证,在4.0%含水率高密实度模拟月壤冻土中,钻具可以在140 N钻压力条件下达到45.8 mm/min的平均钻进速度,获取7 g以上月壤样品。文章的研究结果验证了使用深槽螺旋钻进行月壤冻土钻取采样的可行性,可为我国未来开展月球极区含冰月壤采样探测提供可选方案。 相似文献
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绕月探测工程嫦娥一号卫星自2007年10月24日发射至今,已完成一年的在轨运行和探测任务,共获取了1.37TB科学探测数据,顺利完成月球表面三维影像探测、月表化学元素与物质探测、月壤厚度探测和地月空间环境探测等4项科学任务。科研人员利用星载CCD立体相机获取的探测数据,制作完成了我国首幅全月球影像图(封底)。 相似文献
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月尘累积特性测量技术研究与应用 总被引:1,自引:0,他引:1
月尘是月球环境对月球探测器影响中的一个重要因素。文章针对月表的自然环境和月尘累积特性分布机理,开展对月尘累积特性的测量技术研究,提出了采用黏性石英晶体微量天平(SQCM)和太阳电池短路电流两种测量方法,分别测量月表自然悬浮月尘的累积特性和着陆月表时扬起的月尘量,并在此基础上设计了月尘测量系统。该测量系统包括SQCM探头、太阳电池探头和电控箱,地面标定试验结果验证了其设计的可行性。此测量系统成功应用于嫦娥三号月球探测任务中,并实现了月尘累积特性的在轨原位测量。 相似文献
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"嫦娥三号"是我国首个成功实施地外天体表面就位探测的航天器,在其研制过程中充分考虑了月面环境对探测器的影响,开展了针对性设计及地面验证工作。文章综述了探测器针对月尘环境方面的设计因素,总结了月面月尘激扬的因素及其相关数值分析工作,对月尘验证试验的设计及条件制定进行了说明。相关结果或工作思路可为后续月面探测器及火星表面探测器的研制提供参考。 相似文献
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着陆冲击仿真月壤本构模型及有限元建模 总被引:1,自引:0,他引:1
为建立合理的月壤有限元模型用于着陆器着陆冲击动力学仿真分析,在对已知月壤的相关力学特性参数和试验数据进行分析推理的基础上,推断出月壤屈服面在低围压条件下可能会呈现出剪切膨胀特性,而在高围压条件下则可能会呈现出塑性压缩和应变硬化特性,因此定性地选择帽盖德鲁克-普拉格(Cap Drucker-Prager,CDP)模型作为月壤本构模型。模型的参数通过月壤或模拟月壤的试验数据定量地标定。对着陆器地面着陆冲击试验进行有限元建模和仿真分析,仿真结果表明:模型参数的标定方法是合理可行的;CDP模型可以准确模拟月壤在着陆冲击载荷下的动力学响应,可用于着陆冲击动力学仿真月壤有限元建模。对月壤模型参数进行了参数分析,并评估了月壤模型参数对着陆器着陆冲击性能的影响。 相似文献
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A recent study made by ESA has reviewed the scientific investigations to be only, or best, performed on the Moon (Return to the Moon, ESA SP-1150, June 1992), and has identified the need for a manned lunar outpost to provide support to field geologists in sampling and in-situ observations of the lunar surface, and to allow the refurbishments of surface stations and rovers. Planning and development for a manned outpost on the Moon requires an in-depth understanding and analysis of the functions this outpost is expected to perform. We therefore analyzed the impact of the proposed scientific investigations on the design of a manned lunar outpost. The specific questions raised in our study were: What are the medical, physiological and psychological risks for a crew to stay and to work on the Moon? What transit and lunar surface infrastructures (habitats and vehicles) are needed to minimize those risks? 相似文献
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无人月球基地总体初步设想 总被引:2,自引:1,他引:2
构建月球基地是月球探测的核心目标之一。作为一个巨型项目,月球基地总体建设涉及空间运输、能源、结构构建、月面移动、资源利用、科学探索、测控通信等诸多方面。文章尝试论述构建无人月球基地的任务目标、核心功能与组成、概念方案、实施步骤等核心要素,提出构建无人月球基地的总体思路,为未来月球基地任务的实施提供参考。 相似文献
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This project describes a design study for a core module on a Lunar South Pole outpost, constructed by 3D printing technology with the use of in-situ resources and equipped with a bio-regenerative life support system. The module would be a hybrid of deployable (CLASS II) and in-situ built (CLASS III) structures. It would combine deployable membrane structures and pre-integrated rigid elements with a sintered regolith shell for enhanced radiation and micrometeorite shielding. The closed loop ecological system would support a sustainable presence on the Moon with particular focus on research activities. The core module accommodates from four to eight people, and provides laboratories as a test bed for development of new lunar technologies directly in the environment where they will be used. SinterHab also includes an experimental garden for development of new bio-regenerative life support system elements. The project explores these various concepts from an architectural point-of-view particularly, as they constitute the building, construction and interior elements. The construction method for SinterHab is based on 3D printing by sintering of the lunar regolith. Sinterator robotics 3D printing technology proposed by NASA JPL enables construction of future generations of large lunar settlements with little imported material and the use of solar energy. The regolith is processed, placed and sintered by the Sinterator robotics system which combines the NASA ATHLETE and the Chariot remotely controlled rovers. Microwave sintering creates a rigid structure in the form of walls, vaults and other architectural elements. The interior is coated with a layer of inflatable membranes inspired by the TransHab project. The life-support system is mainly bio-regenerative and several parts of the system are intrinsically multifunctional and serve more than one purpose. The plants for food production are also an efficient part of atmosphere revitalization and water treatment. Moreover, the plants will be used as a “winter garden” for psychological and recreational purposes. The water in the revitalization system has a multifunctional use, as radiation shielding in the safe-haven habitat core. The garden module creates an artificial outdoor environment mitigating the notion of confinement on the lunar surface. Fiber optics systems and plasma lamps are used for transmission of natural and artificial light into the interior. 相似文献