Numerical Simulation Analysis of Wind Moment of Radar Flat-panel Antenna
Wind load is an important external load that affects the stability performance,transient performance and stability error of the radar servo system.This paper uses numerical simulation analysis methods to calculate the wind moment coefficient of the radar flat-panel antenna,and explores the variation rule of wind moment coefficient of flat-panel antenna at different azimuth and pitch angles based on experimental data.It is found that as the azimuth angle increases,the azimuth wind moment coefficient of the radar flat-panel antenna first decreases and then increases;as the pitch angle increases,the pitch wind moment coefficient shows an overall decreasing trend.Moreover,the absolute values of both wind moment coefficients decrease as the hollowness increases.The error of pitch wind moment of a radar antenna array between the numerical simulation results and the wind tunnel test is 8.7%,and the moment direction is consistent with the test.This shows that the wind load numerical simulation method can be used to calculate the wind loads of similar flat-panel antennas.
radar flat-panel antennawind moment coefficientnumerical simulationwind tunnel test
NETL
NSTL
万方数据
