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中文摘要：
提出了一种应用灰度击中击不中变换提取故障特征的方法.从待分析信号中指定若干个目标波形,由此计算得出击中击不中结构元素对,在每个采样点位置进行模式匹配,具有故障特征的波形段将具有较高的输出.应用于制氧厂驱动电机的碰摩信号和转子试验台的冲击信号,成功提取出削波特征和冲击特征.该方法与人工分析信号的思路接近,算法容易理解,可以作为从时域波形直接提取故障特征的一种有效方法.
英文摘要：
A method was proposed for fault feature extraction based on the gray-scale hit-or-miss transform. Several target wave- forms are chosen from the analyzed signal, and then hit-or-miss structure element pairs could be thereby calculated. Pattern matching is carried out at every sample point, and higher output is obtained when fault features occur. As the method was used to analyze the rub- impact signal of a driving motor and the impulse signal of a rotator test-bed in an oxygen manufactory, fault features were successfully extracted. The method is close to artificial thinking and easy to understand, so it is an effective method to extract fault features from a time domain waveform straightly.
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