滾動(dòng)軸承故障特征頻率實(shí)驗(yàn)改變與間諧波倍頻誤差機(jī)理研究
[Abstract]:The calculation of fault characteristic frequency of rolling bearing has always been an important theoretical basis in the field of fault diagnosis and condition monitoring of rolling bearing. However, it is found that the measured value of fault characteristic frequency is not completely consistent with the calculated value of fault characteristic frequency formula, and the fault characteristic frequency of two groups of different experimental data under the same experimental conditions is not exactly the same. The relationship between harmonic frequency and fundamental frequency is not strictly multiple, that is, there are many problems such as inter-harmonic frequency doubling error. Then, the mechanism of experimental change of characteristic frequency and the fundamental cause of inter-harmonic frequency doubling error are thoroughly analyzed. Based on this, the error improvement method is discussed theoretically, which provides the theoretical basis for fault diagnosis and improvement of rolling bearing.
【作者單位】: 青島理工大學(xué)機(jī)械工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(51075220) 山東省高等學(xué)?萍加(jì)劃(J13LB11) 高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金(20123721110001) 青島市科技計(jì)劃基礎(chǔ)研究項(xiàng)目(12-1-4-4-(3)-JCH)
【分類號(hào)】:TH133.33
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