摘要
针对高轨气象卫星的远地点发动机点火过程中贮箱内液体晃动与星体耦合动力学问题,根据流体力学及小幅液体晃动理论,建立可等效的液体晃动力学模型和姿态耦合动力学模型,分析了大型平铺贮箱内液体晃动产生的干扰力矩。研究表明:在远地点发动机点火阶段,液体晃动对卫星将产生较大干扰力矩。
Aim to the liquid sloshing of tank in the process of the motor firing and satellite rigid-body coupling dynamics for the GEO meteorological satellite,the equivalent liquid sloshing model and attitude coupling dynamics model were established according the theory of hydromechanics and small fluid sloshing in this paper.The disturbance torque caused by the liquid sloshing in large tiled propellant tank was analyzed.The study results showed that the certain disturbance torque would be caused by the liquid sloshing during the motor firing phase.
出处
《上海航天》
2011年第1期18-22,共5页
Aerospace Shanghai
关键词
流体力学
平铺贮箱
液体晃动
单摆
晃动力矩
Hydromechanics
Tiled tank
Liquid sloshing
Single pendulum
Sloshing torque
