SGER: A New Approach to Space Debris Elimination

SGER：消除空间碎片的新方法

• 批准号: 0741616
• 负责人: Szymon Suckewer
• 金额: --
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0741616&HistoricalAwards=false
• 关键词: SGER; New; Approach; Space; Debris

AbstractProposal Number: ECS-0741616Proposal Title: SGER: A New Approach to Space Debris ElininationPI Name: Suckewer, SzymonPI Institution: Princeton University ObjectiveThe main objective of this project is to investigate, by computer simulations, the most efficient way to remove small debris and to prepare the basis for a large project on small debris removal in space. Intellectual MeritThe PI will combine computer algorithms currently available at Princeton in order to model the laser beam-debris interaction. The research will concentrate on computer calculations of generation thrust on debris in space by ultra-short and very high intensity laser pulses and long pulses of powerful fiber laser.Broader ImpactsIn 1997 the Project ORION was established by Air Force to assess the possibility of eliminating small size debris ( 10 cm) from space, by shooting a laser beam from the ground at individual debris. Such debris, being "invisible" for navigation devices, may be catastrophic for space vehicles during collision with them. The required laser beam energy was estimated to be in the range of 20 kJ per pulse with extremely low beam divergence (~ 1urad) in order for laser beam to provide adequate intensity on debris at distance ~ 1000 km from the Earth. This project will investigate the use of lasers orbiting in space to eliminate small debris by "kicking them off" of their orbits into lower orbits for the debris to burn up in the atmosphere. It will include research on comparing the efficiency of low energy ultrashort pulse laser and recently developed high power fiber laser for debris elimination. The PI will also investigate the advantages of using lasers located in space in comparison with ground base lasers.

摘要提案编号：ECS-0741616提案标题：SGER：一种新的空间碎片清除方法 PI名称：Suckewer，Szymon PI机构：普林斯顿大学 目的该项目的主要目标是通过计算机模拟研究清除小碎片的最有效方法，并为太空小碎片清除的大型项目奠定基础。智力优势 PI 将结合普林斯顿大学目前可用的计算机算法来模拟激光束与碎片的相互作用。该研究将集中于通过超短和极高强度激光脉冲以及强大光纤激光器的长脉冲对太空碎片产生推力的计算机计算。 更广泛的影响 1997年，空军设立了“猎户座”项目，旨在评估通过从地面向单个碎片发射激光束来消除太空中小尺寸碎片（10厘米）的可能性。这些碎片对于导航设备来说是“不可见的”，但对于航天器来说在与它们碰撞时可能是灾难性的。据估计，所需的激光束能量在每脉冲 20 kJ 范围内，且光束发散度极低 (~ 1urad)，以便激光束能够在距离地球约 1000 公里的碎片上提供足够的强度。该项目将研究使用在太空轨道运行的激光来消除小碎片，方法是将它们“踢出”轨道，进入较低的轨道，以便碎片在大气中燃烧。它将包括比较低能量超短脉冲激光器和最近开发的用于碎片消除的高功率光纤激光器的效率的研究。 PI 还将研究使用太空激光器与地面激光器相比的优势。