变质心飞行器姿态与弹道性能分析  

Performance Analysis of Attitude and Ballistic for Moving Mass Actuated Vehicle

作　　者：李瑞康[1] 荆武兴[1] 高长生[1,2] 杜华军[3] 

机构地区：[1]哈尔滨工业大学航天工程系,哈尔滨150001 [2]中国航天科工集团二院二部,北京100854 [3]北京航天自动控制研究所,北京100854

出　　处：《宇航学报》2009年第4期1498-1503,共6页Journal of Astronautics

基　　金：国家自然科学基金资助项目(10572042);中国博士后科学基金资助项目(20080440436)

摘　　要：对变质心飞行器的姿态和弹道性能进行了分析。根据变质心控制原理得到飞行过程中总配平攻角表达式,从该表达式中获得影响姿态的滑块参数,并分析了这些参数对总配平攻角的影响;从气动力矩的角度分析滑块参数对滚动角的影响;根据配平状态下所受到的横向过载,分析了滑块参数对弹道机动能力的影响。分析结果表明,滑块质量比对姿态和弹道的影响最大,质量比增大20%攻角和弹道落点偏差分别增加38%和36%;其次是横向偏移量;最后是轴向安放位置。In this paper, the attitude and ballistic performance of moving mass actuated vehicle are analyzed. The total trim angle expression is obtained according to the principle of moving mass control, the mass parameters which can influence the vehicle attitude are obtained from the expression and the influence of mass parameters on the total trim angle is analyzed. The influence of these parameters on roll angle is also analyzed from the perspective of aerodynamic torque. These parameters effect on mobility is analyzed based on the lateral overload in trim condition. Results show that the greatest impact on attitude and ballistic is mass ratio, as the mass ratio increase by 20% the angle of attack and impact point deviation will be increase by 38% and 36% respectively, secondly is lateral movement displacement, and lastly is axial position.

关 键 词：变质心控制 飞行器 姿态性能 落点偏差 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]