At first the method for calculating the fundamental natural frequency of structure is researched 首先研究了结构的最低阶固有频率的计算方法。
2.
The fea model of the signal transform device is established with the use of ansys based on design specifications and tests . the fundamental natural frequency predicted by the fea model is consistent with it obtained by the tests 在设计规范和试验的基础上,用ansys软件建立了信号变换装置有限元分析模型,由有限元分析模犁得出的结构最低阶固有频率与试验测得的数据基本一致。