Research on Analysis and Numerical Simulation of Wind-Load on Observatory Antenna
For large observatory antenna working in the open air, wind-load is the primary disturbance which should be considered because it not only influences the structure strength of the antenna, but also causes distorts of emitting area and the back-frame, which influences the antennas precision seriously and creates focal diverge.In order to analyze the effects of the wind-load on the antenna, a dynamic model is presented based on the computational wind engineering, which is deduced with the relation between wind speed and wind-load torques acting on the azimuth and elevation axis, through coordinate transformation.Finally, a numerical simulation analyzing of the effects of wind-load on the antenna is carried out using MATLAB, which reveals the variety law of wind-load under a typical trajectory of antenna.
Wind-Load Coordinate transformation Numerical simulation Dynamic emulation
Demin Qiu Diyu Zhou Qi Zhang Qing Sun
Qingdao Station, Xian Satellite Control Center, Qingdao 266114, China
国际会议
The 27th Conference of Spacecraft TT&C Technology in China(第27届中国飞行器测控学术会议)
广州
英文
123-136
2014-11-09（万方平台首次上网日期，不代表论文的发表时间）