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根据切削噪声试验结果，提出在强烈切削振动情况下，切削噪声与刀具主切削力方向的振动在时域中具有极强的相关性，在频域中具有极大的频率结构相似性，并进而提出了稳态切削噪声与动态切削噪声的概念，解释了切削噪声发声的物理机理。本文还采用倒谱剔除观测切削噪声信号中的回声信号，以分析原始切削噪声的频率结构；并将切削振动作为主要输入、切削噪声作为输出，采用二维ＡＲＭＡＶ模型辨识切削噪声发声系统，辨识结果描述了发声系统对切削振动的传输关系，并能较好地解释原始切削噪声的主要频率成分的来源与传输。
According to the results of the cutting noise test, it is proposed that in the case of intense cutting vibration, the cutting noise has strong correlation with the vibration in the direction of the main cutting force of the cutter in the time domain and has a great frequency structural similarity in the frequency domain, The concept of steady-state cutting noise and dynamic cutting noise is proposed, and the physical mechanism of cutting noise is explained. In this paper, the echo signal from the observed cutting noise signal is removed by cepstrum to analyze the frequency structure of the original cutting noise. The cutting vibration is taken as the main input and the cutting noise is taken as output. The two-dimensional ARMAV model is used to identify the cutting noise sounding system. Describes the transmission relationship of the vocal system to the cutting vibration and can better explain the source and transmission of the main frequency components of the raw cutting noise.