机载拖曳天线动力学建模与仿真  

Dynamic modeling and simulation of airborne trailing antenna

作　　者：郑小洪[1] 韩维[1] 贾忠湖[1] 郭卫刚[1] 张原 

机构地区：[1]海军航空工程学院飞行器工程系,山东烟台264001 [2]海军航空兵学院模拟中心,辽宁葫芦岛125001

出　　处：《飞行力学》2013年第3期234-238,共5页Flight Dynamics

摘　　要：拖曳天线在空中的构型及垂直度是检验天线能否正常发射甚低频信号的主要依据,是设计人员必须着重考虑的因素。通过对其运动状态及其受力进行分析,建立机载甚低频拖曳天线动力学模型。针对其稳态动力学模型,运用Newton-Raphson迭代进行求解,计算出了天线垂直构型和天线的张力分布情况。通过与AD报告计算结果进行比较,证明所建立的动力学模型是可信的。最后分析了空气系数和天线末端质量对天线垂直构型和天线张力分布的影响。The steady state and verticality of trailing antenna are the direct measure of the antenna＇ s abil ity to transmit VLF signal. They are important factors which should be taken into account by the designer of the antenna is analyzed, the mathematic model of the trailing antenna is built via the analysis of the motion state and the force condition. The steady state dynamic model is solved via NewtonRaphson itera tive, and the steady state and the tension of the antenna are analyzed. The solution is proved to be relia ble by comparing with the AD report. Finally, air coefficient and the influence of antenna end mass on the vertical configuration and the tension of the antenna are studied.

关 键 词：拖曳天线 动力学建模 Newton-Raphson迭代 仿真 

分 类 号：V243.3[航空宇航科学与技术—飞行器设计]