动调陀螺组合体减振器的模态分析

Modal Analysis of Dynamic-Gyroscope Bracket

使用有限元软件 MSC/NASTRAN对动调陀螺组合体进行了模态分析与研究 ,并给出了陀螺组合体的 1 5阶模态频率和振型。分析结果表明 ,陀螺组合体前 6阶模态频率对其整体振动有很大的影响 ,同时验证了陀螺组合体的固有频率将远离外界激振频率 ,不会因为受到外界频率的激振而发生工作失效。

In this paper, a modal analysis of a Dynamic Gyroscope Bracket has been made by using the FEM software NASTRAN, and the first 15 modal frequencies and shapes of the bracket are given. The results show that the first 6 modes have great influence on its vibration,and the modal frequencies are far apart from the environment vibration frequencies.