MAGNETIC SAILS AND INTERSTELLAR TRAVEL
MAGNETIC SAILS AND INTERSTELLAR TRAVEL
复制标题
磁帆和星际旅行
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
R. Zubrin
中科院分区：
文献类型：
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作者：
D. Andrews;R. Zubrin
一个新的概念，磁帆，或“Magsail”，提出了使用超导电缆环产生的磁场来偏转行星际或星际等离子体风来推动航天器。给出了一个描述的计算机代码用于模拟这样的设备的性能和一系列的调查结果。研究发现，在太阳风中航行的磁帆，其半径为一个单位（A.U.）可以达到0.01米/秒2的加速度，远远大于传统的太阳光帆。当用作星际航天器的制动器时，磁帆可以每五年将航天器的速度降低e倍。系统性能代码被用来分析磁帆的效用时，无论是与聚变火箭或激光光帆加速星际航天器。据发现，磁帆可以减少飞行时间40至50年，推进剂需求减少30%，用于10光年的聚变火箭推进任务。Magsail还提供了一种有效的方法来减速激光光帆推进的任务，否则根本不可能。
A new concept, the magnetic sail, or "Magsail", is proposed which propels spacecraft by using the magnetic field generated by a loop of superconducting cable to deflect interplanetary or interstellar plasmas winds. A description is given of the computer code used to model the performance of such a device and results of a series of investigations are presented. It is found that a Magsail sailing on the solar wind at a radius of one astronautical unit (A.U.) can attain accelerations on the order of 0.01 m/s 2 , much greater than that available from a conventional solar lightsail. When used as a brake for an interstellar spacecraft, the Magsail can reduce spacecraft velocity by a factor of e every five years. A systems performance code was used to analyze the utility of the Magsail when used in conjunction with either fusion rocket or laser lightsail accelerated interstellar spacecraft. It is found that the Magsail can reduce flight times by forty to fifty years and propellant requirements by thirty percent for fusion rocket propelled ten lightyear missions. The Magsail also provides an efficient method for decelerating laser lightsail propelled missions that are otherwise simply impossible.