摘要
以国际地磁参考场模型IGRF11为基础,推导出地球磁场梯度分布公式,并对近地空间磁场分布特点进行了分析。由基本磁力学可知,带强磁体的航天器在地磁环境中不仅受到磁力矩作用,还将受到与地磁梯度相关的磁力的影响。根据地磁环境下的磁体受力机理,文章讨论了以弱磁力改变轨道倾角的方法,并通过数值仿真验证了其有效性。
Based on the 11^th international geomagnetic reference field （IGRF11） model, the gradient distribution characteristics of the geomagnetic field in the near-Earth space are analyzed. From magnetics, it is known that the spacecraft with a strong magnet moment is not only affected by the magnetic moment, but also by a magnetic force related to the geomagnetic gradient. This paper discusses how to change the orbital inclination angle by the weak magnetic force, based on the force analysis for a magnet interaction with the geomagnetic field in the IGRFI l model. Numerical simulations are carried out to test the effectiveness of this idea.
出处
《航天器环境工程》
2012年第5期493-498,共6页
Spacecraft Environment Engineering
基金
国家自然科学基金"低轨航天器磁推进机理研究"(项目编号:11002143)
关键词
IGRF11模型
地磁场
梯度分布
弱磁力
IGRF11 model
geomagnetic field
gradient distribution
weak magnetic force
