基于交变电场的月表除尘方法研究进展

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doi:10.6052/1000-0992-12-054

北京理工大学宇航学院, 北京 100081

基金项目:国家自然科学基金(11002023), 高等学校博士学科点专项科研基金(20091101120004), 北京理工大学基础研究基金 (20090142011), 北京理工大学优秀青年教师资助计划(2010Y0101) 资助

详细信息

作者简介:
蔡小兵, 讲师, 任职于北京理工大学宇航学院力学系, 2003 年毕业于北京理工大学, 获工程力学专业学士学位, 2008 年毕业于北京理工大学理学院力学系, 获固体力学专业工学博士学位, 同年进入北京理工大学力学系工作. 2010 年获国家自然科学基金, 研究方向为"基于颗粒群电控运动的月尘防护机理研究". 2012 年加拿大西安大略大学访问学者.

通讯作者:
蔡小兵
胡更开

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出版历程
- 收稿日期:2012-04-09
- 修回日期:2012-06-29
- 刊出日期:2012-11-25

ADVANCE IN LUNAR SURFACE DUST REMOVAL METHOD BY ELECTRODYNAMIC FIELD

School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

Funds:The project was supported by the National Natural Science Foundation of China (11002023),the Doctoral Fund of Ministry of Education of China (20091101120004) and Beijing Institute of Technology Science Foundation (20090142011, 2010Y0101).

More Information

Corresponding author:CAI Xiaobing;HU Gengkai

摘要

摘要:实施月球表面探测时, 月表尘埃物质容易在探测设备表面沉积并造成严重不利影响. 近年来交变电场除尘方法被认为是在月表进行尘埃防护的有效手段, 但要使该方法实用化, 仍需要弄清除尘的机理, 确定相关影响的因素, 以便进行优化设计. 本文从实现交变电场的电帘出发, 分别介绍电帘表面的交变电场分布、颗粒在电帘表面的受力状态、颗粒群运动过程中的摩擦电荷分布、颗粒运动的模拟方法、颗粒运动过程、除尘效率和能耗的理论和实验研究, 并对自清洁太阳能电池板系统的设计与制备进行了总结. 对颗粒的起跳过程、静电的生成和除尘效率影响因素等普遍关注的问题进行了细致的讨论和总结, 指出了颗粒的带电量对起跳过程的关键作用. 最后, 对该除尘防尘存在的问题进行了归纳, 并展望了该领域的发展趋势.
- 月尘, 电帘, 颗粒物质, 介电泳力, 除尘
Abstract:The adhesive dust particles on lunar surface can easily deposit on surfaces of detecting devices, which poses serious problems for moon surface explorations. Dust removal by electrodynamic field is recently considered as an effective method to mitigate dust pollution for future lunar or Mars surface missions. However, lack of full understanding about the mechanism of dust removal limits practical applications of this technique. In this paper, the realization of electrodynamic field by electric curtain (EC) is firstly introduced, then electric field distribution and forces acting on the particles along the EC surface, tribo-charge distribution during particle flow movement, particle movement simulation methods, dust removal efficiency and energy consumption of EC have been discussed. Particle initial leaping processes, generation of tribo-charge within particle flows and factors influencing the dust removal efficiency have been explained and analyzed in detail. The emphasis is also placed on the contribution of static particle charge to its initial leaping process. At last, the future trend of this technique has also been discussed.
- lunar dust, electric curtain, granular matter, dielectrophoresis force, dust removal

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