高超声速临近空间飞行器非开普勒轨道研究  

Study on the non-Keplerian orbits of the near space hypersonic vehicles

作　　者：李海林[1] 吴德伟[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《飞行力学》2012年第3期276-279,共4页Flight Dynamics

摘　　要：以高超声速临近空间飞行器非开普勒轨道弹跳飞行为研究对象,论证了高超声速临近空间飞行器飞行轨道属于非开普勒轨道的研究范畴。首先给出了非开普勒轨道机动巡航段、再入段和再入瞬间的动力学方程;其次研究了再入瞬间高超声速临近空间飞行器的位置矢量求解问题,提出弹跳系数的概念;最后进行了仿真分析。仿真结果表明,非开普勒轨道动力学方程是正确的,弹跳系数是准确性的,从而说明了非开普勒轨道弹跳式远距离飞行方法是研究高超声速临近空间飞行器的一种新的有效途径。This paper studied the bouncing trajectory of the near space hypersonic vehicles,and discussed the trajectory of the near space hypersonic vehicles that belongs to the category of non-Keplerian orbits.Firstly,its cruising phase dynamics equations,its reentry phase dynamics equations,and reentry-moment dynamics equations of non-Keplerian orbits were presented;next,and the question of the reentry-moment position vector of the near space hypersonic vehicles was researched;the concept of bouncing modulus was presented;lastly,the simulation was analyzed,the results was showed that the validity of dynamics equations of non-Keplerian orbits and the veracity of the bouncing modulus.Consequently demonstrates that the method of non-Keplerian orbits＇ bouncing flight is a new valid approach of the near space hypersonic vehicles.

关 键 词：高超声速临近空间飞行器 巡航段 再入段 弹跳系数 

分 类 号：V412.44[航空宇航科学与技术—航空宇航推进理论与工程]