基于阶次分析理论的变速器故障判别实现方法

Implementation method for transmission fault diagnosis based on order analysis

根据变速器下线产品质量检测的要求,研究了基于阶次分析理论的变速器故障判别实现方法。通过阶次跟踪计算将等时采样转换为等角度采样。并分析了对振动信号进行分轴重采样的原理和必要性,给出了分轴阶次谱计算的详细步骤。通过对故障变速器数据的分析表明,提出的方法可以明显识别变速器出现的齿轮啮合故障,并可以准确地定位故障零件。

According to the requirements of quality inspecting for the transmission products, this paper proposed an implementation method for the transmission fault discrimination based on order analysis. Turn the constant time interval sampling to the constant angle interval sampling by order tracking. Gave the implementation steps in detail after analyzed the necessity of resample vibration signal. The analysis result from the transmission＇s signal have shown that, the proposed method by can identify the fault messages of meshing gears and locate the fault part＇s exactly location accurately.