数据驱动的经编机横移机构故障检测方法研究

数据驱动的经编机横移机构故障检测方法研究

崔旭浩,郗欣甫,孙以泽

Research on data-driven fault detection method of traverse mechanism of warp knitting machine

Xu-hao CUI,Xin-fu CHI,Yi-ze SUN

表1 振动信号时域特征计算式

Table 1 Calculation formula of time-domain feature of vibration signal

特征	公式
绝对均值	$T_{1} = \frac{1}{F} \sum_{f = 1}^{F} \|s_{f}\|$
峰值	$T_{2} = m a x (\|s_{f}\|)$
有效值	$T_{3} = \sqrt[]{\frac{1}{F} \sum_{f = 1}^{F} s_{f}^{2}}$
峰值因子	$T_{4} = \frac{T_{2}}{T_{3}}$
峭度指标	$T_{5} = \frac{1}{T_{3}^{2}} \frac{1}{F} \sum_{f = 1}^{F} {(s_{f} - \bar{s})}^{4}$
裕度因子	$T_{6} = \frac{T_{2}}{{(\frac{1}{F} \sum_{f = 1}^{F} \sqrt[]{\| s_{f} \|})}^{2}}$