摘要
将圆抛物面天线的反射面抽象为薄壳,通过求解圆抛物面薄壳的弹性力学方程,计算出中心体支撑和自由边框边界条件的圆抛物面天线反射面受载时的变形位移,首次分析这一类天线反射面变形的总体规律和天线反射面的各形状参数对位移场变化的影响。并将计算结果与无矩理论假设下的计算进行比较,总结出比无矩理论的解更为准确的结论。
At primary analyzing antenna electrical precision, Antenna＇s reflector can be seem as a shell. Mechanics character of circular paraboloid Antenna＇ s reflector with liberty border and relation between its form parameter and its deformation under loading effect was analyzed based on solving the elastic mechanics equation of shell. It＇ s a new method what is used to analyze deformation of antenna＇ s reflector under loading effect first time. Compared with the calculation result according to bending free theory, reflects the law of reflector＇s deformation more accurately.
出处
《机械强度》
CAS
CSCD
北大核心
2009年第3期448-453,共6页
Journal of Mechanical Strength
关键词
抛物面天线
反射面
自由边框
法向位移
径向位移
Paraboloid antennas
Reflector
Liberty border
Normal displacement
Radial displacement
