【摘要】 本文介绍了对几座人造卫星地面站天线基墩的自振特性在填土前后、有无翼肋及天线塔架安装前后等情况下进行的原体试验,结果表明,当基墩周围布置上十六根翼肋时,明显地增加了扭转和剪切刚度。更多还原

【Abstract】 In this paper, a measurement on the spot is given out to determine the natural characteristic properties of free vibration of cylindrical shell fundation of ground station of satellites. It shows that the torsion and shear stiffness increase obviously when reinforcement wings are used.更多还原