【摘要】 本文采用时间序列分析法在机床连续切削和非连续平稳切削状态下，建立线性ＡＲ模 型，识别机床固有频率．与采用正弦激振法和ＦＦＴ分析法所得结果进行比较，论证了在非连续平 稳切削状态下识别机床固有频率的优越性．更多还原

【Abstract】 This paper makes AR model and recognized natural frequncy of machine tool with time series ana- lysis method in the states of continuous and noncontinuous steady cutting. In comparing the obtained result of sine wave excitation method and FFT analysis method, the advantage of recognizing natural frequency of machine tool in the state of noncontinuous steady cutting is described.更多还原