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目的为了深入研究陶瓷电主轴的动态特性,准确高效的实现对电主轴模态参数的识别。方法以LabVIEW为软件平台设计开发出一款陶瓷电主轴模态参数识别模块,采用频域分析法中经典的峰值提取法和分量分析法相结合的方法。结论该模块在发挥每种算法的优势的同时互补各自的不足,很好的提高了分析的准确度,经过该模块的运算,得到170SD30型全陶瓷高速电主轴前三阶固有频率依次为1 315 Hz、2 640 Hz、4 795 Hz。对于固有频率相邻不是很密集的动态特性曲线有良好的模态参数识别效果。
Objective In order to further study the dynamic characteristics of ceramic spindle, accurately and efficiently identify the spindle parameters of the model. Methods A model of ceramic electrospindle modal parameter identification was designed and developed based on LabVIEW software platform. The classical method of peak extraction and component analysis in frequency domain analysis was used. Conclusion The module complements each of the advantages of each algorithm while complementing each other’s deficiencies, which improves the accuracy of the analysis. After the operation of the module, the first three natural frequencies of 170SD30 all-ceramic high-speed spindle are 1 315 Hz, 2 640 Hz, 4 795 Hz. For the natural frequency is not very close to the dynamic characteristics of the curve has a good modal parameter identification effect.