三轴转台结构模态分析与试验

The Structure Modal Analysis and Expeniment of The Three-axle Test Table

用模态分析方法与频谱分析仪器对三轴台结构特征问题进行了试验，得出了台体结构的模态参数（频率、振型、质量、刚度和阻尼），并与有限元方法计算值和频响测试值进行比对，为进一步作动力学分析提供了重要的数据。

In this paper,the three-axle test table structure character problem is tested with spectrum analyzer and modal analysis method,then the modal parameter of the table-base structure,such as frequency,model,,uality,stability and damping,is concluded Compared these parameters with the calculated value of finite element method and frequency response test value,important data is provided for further dynamics potentiometry