风作用下机载拖曳天线的动力学建模与分析

doi:10.7527/S1000-6893.2013.0180

Abstract

Abstract:

A dynamic model of the trailing antenna under wind and its simulation method are developed based on the microelement method, which is a very complex partial differential equation. It is transformed into a governing partial equation and a simple partial differential equation by perturbation procedure. Then the simple partial differential equation is discretized to obtain the numerical solution by the Galerkin method. Under the same flight conditions, the magnitude and frequency of the oscillation between the simulation and experiment are very close, which shows the dynamic model is dependable. Under the background of the average wind speed profile of south China sea (110E, 20N) in 2009, the dynamics of the trailing antenna is researched. The simulation results show that the antenna and the end drogue vibrate by a large displacement but it can be improved by controlling the bank angle.

Key words: trailing antenna, dynamic model, verticality, vibration analysis, perturbation procedure, Galerkin method

CLC Number:

V243

ZHENG Xiaohong, HAN Wei, JIA Zhonghu. Modeling and Simulation of Trailing Antenna on Aircraft Under Wind[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(11): 2565-2571.

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Modeling and Simulation of Trailing Antenna on Aircraft Under Wind

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