Normal modes in the pole and important characteristic parameters such as resonance frequency and position of the displacementnode are obtained using the finite element method.
并应用有限元法对变幅杆进行了模态分析，得到了共振频率和位移节点等重要参数。
2
Then theoretical resonance length, small end diameter, displacementnode, magnification factor, shape factor and other parameters of the amplitude amplifier pole could be determined.
确定出其理论共振长度、小端直径、位移节点、放大系数、形状因数等参数。
3
Based on the structural analysis of the reflector antenna, a mesh model of the distorted reflector is obtained through the nodedisplacement of elements of the distorted reflector.