多碎片清除气动辅助异面变轨优化设计
碎片清除飞行器异面变轨要消耗大量燃料。该文从气动辅助异面变轨优化设计及设计参数对变轨性能影响分析出发,旨在分析优化气动辅助异面变轨与双脉冲霍曼轨道转移相比燃料节约量。分析研究了不同高度差轨道间实施气动辅助变轨对燃料节约量的影响。地球静止轨道(Geostationary Earth Orbit, GEO)与低地轨道(Low Earth Orbit, LEO)间气动辅助变轨优化速度增量约为1.55km/s、质量面积比172 kg/m2、比冲310 、轨道倾角变化16°时燃料节约率约为45%。对比研究了不同轨道高度差的LEO轨道间实施气动辅助变轨的燃料节约情况。结果表明:随着轨道高度的增加,气动辅助优化效率逐渐降低;相同高度轨道间实施异面变轨,随着轨道倾角的增加气动辅助变轨燃料节约率增大;当轨道倾角小于5°时,采用气动辅助变轨和双脉冲变轨燃料消耗量相等。
he problem of minimum-fuel aeroassisted orbital transfer of a high lift-to-drag ratio vehicle from Low Earth Orbit (LEO) or Geostationary Earth Orbit (GEO) to low-Earth orbit with an inclination change is considered. Assuming impulsive thrust, the trajectory design is described in detail and the aeroassisted orbital transfer is posed as a nonlinear optimal control problem. Through comparison of the double-impusive orbit transfer and aeroassisted orbit Transfer in noncoplanar orbit, we concluded the influence of altitude difference from two noncoplanar orbits and the perigee choice of the middle transtion orbit. The main problem that aeroassisted orbital transfer may face is hypersonic flight in the upper atmosphere. In the end the technology used in X-37B flight was concluded.
闫瑞东、师立勤、龚建村、王荣兰、刘四清
航天
多碎片清除气动辅助变轨轨道优化设计
闫瑞东,师立勤,龚建村,王荣兰,刘四清.多碎片清除气动辅助异面变轨优化设计[EB/OL].(2017-01-22)[2025-08-02].https://chinaxiv.org/abs/201701.00240.点此复制
评论