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从分子动力学模拟角度提出了一种分布式航天器群导航控制方法,可使行星中心开普勒轨道上的航天器群在有限的感知信息条件下自发实现图形编队.该法基于人工势场技术,主要分为两个部分:改造自C-W方程的外围全局汇聚势场和基于Tersoff-Brenner势的局部塑形势场.前者将各航天器导引至预设汇聚点附近,后者进一步使各航天器自我调整彼此相对位置,最终编成期望构型.此外,引入一速度依赖型耗散项以确保任意初始分布条件下图形编队均收敛.通过地球同步轨道上航天器群正四面体构型(含中心,即金刚石结构单元)编队仿真,验证了所提方法的有效性和优越性.将编队脚本简单修改,该法还可方便用于其它类碳元素同素异形体构型的塑造,如石墨晶体结构单元正六边形等.
Based on molecular dynamics simulation, a distributed spacecraft group navigation control method is proposed, which can make the spacecraft group on the Keplerian orbital plane spontaneously realize the formation of graphics under the condition of limited perceptual information. This method is based on the artificial potential field Technology is mainly divided into two parts: the peripheral global convergence potential field transformed from the CW equation and the local plastic potential field based on the Tersoff-Brenner potential, the former guiding the spacecraft to the vicinity of the preset convergence point, and the latter further making each The spacecraft self-adjust relative position to each other and finally form the desired configuration. In addition, a velocity-dependent dissipative term is introduced to ensure the formation of graphics formations converge under any initial distribution condition. Through spacecraft group regular tetrahedron configuration on geosynchronous orbit (Including the center of the diamond structure unit) formation simulation to verify the effectiveness and superiority of the proposed method will be a simple modification of the formation of the script, the method can be easily used for other types of carbon allotrope configuration shaping, Such as graphite crystal unit hexagonal and so on.