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基于小波包能量法的滾動(dòng)軸承故障診斷
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    摘要:

    闡述了故障軸承振動(dòng)與信號(hào)的關(guān)系,,小波包的原理以及BP神經(jīng)網(wǎng)絡(luò)的工作原理和實(shí)現(xiàn)過(guò)程,,并以滾動(dòng)軸承故障診斷為例,提取了小波包節(jié)點(diǎn)能量作為振動(dòng)信號(hào)特征參數(shù),并訓(xùn)練BP神經(jīng)網(wǎng)絡(luò),,對(duì)故障模式進(jìn)行識(shí)別,。結(jié)果表明,,如果神經(jīng)網(wǎng)絡(luò)設(shè)計(jì)合理,,訓(xùn)練適當(dāng),則具有很強(qiáng)的故障識(shí)別能力,。說(shuō)明利用小波包能量法和BP神經(jīng)網(wǎng)絡(luò)進(jìn)行滾動(dòng)軸承振動(dòng)診斷是可行,、有效的。

    Abstract:

    The steps of method of rolling bearings fault diagnosis were summarized based on wavelet packet energy feature and BP neural network, and the principle of wavelet packet and the connection between vibration of fault rolling bearings and signal were illuminated. On this basis, wavelet packet energy feature was extracted to construct characteristic vector, and a rolling bearings fault diagnosis experiment was designed to verify this method. The conclusion indicated that BP neural network has possessed good capability of identification with reasonable design and proper training. The results showed that it is feasible to implement fault vibrating diagnosis of rolling bearings with wavelet packet energy feature and BP neural network.

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張軍,陸森林,和衛(wèi)星,王以順,李天博.基于小波包能量法的滾動(dòng)軸承故障診斷[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2007,38(10):178-181.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(10):178-181.

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