本文選題：信號傳遞路徑 + 齒輪裂紋��； 參考：《儀器儀表學(xué)報(bào)》2016年05期

【摘要】：采用集中參數(shù)法對多級齒輪傳動(dòng)系統(tǒng)的齒輪振動(dòng)進(jìn)行建模仿真,獲得難以直接測量的齒輪箱內(nèi)部振源振動(dòng)信號。根據(jù)系統(tǒng)辨識理論,獲得振源信號傳遞至2個(gè)不同測點(diǎn)下傳播路徑的傳遞函數(shù)。通過比較2測點(diǎn)在同種系統(tǒng)狀態(tài)下對應(yīng)的信號傳播路徑的傳遞函數(shù)特征,選取了更能反映系統(tǒng)振動(dòng)特征的測點(diǎn)作為最佳測點(diǎn)。通過比較無故障狀態(tài)與定軸齒輪齒根裂紋狀態(tài)下最佳測點(diǎn)對應(yīng)的信號傳播路徑的傳遞函數(shù)特征,找出系統(tǒng)剛度微小變化時(shí)傳遞函數(shù)的變化特征,從而能夠以此輔助判斷微弱故障類型。
[Abstract]:The vibration of multi-stage gear transmission system is modeled and simulated by means of lumped parameter method, and the vibration signal of the inner vibration source of the gear box is obtained which is difficult to measure directly. According to the system identification theory, the transfer function of the propagation path of the vibration source signal to two different measuring points is obtained. By comparing the transfer function characteristics of the signal propagation paths corresponding to the two measuring points in the same system state, the best measuring points are selected which can better reflect the vibration characteristics of the system. By comparing the transfer function characteristics of the signal propagation path between the fault free state and the optimum measuring point under the crack condition of the tooth root of the fixed axis gear, the characteristics of the transfer function when the stiffness of the system changes slightly are found out. Thus it can be used to judge the weak fault type.
【作者單位】： 天津工業(yè)大學(xué)機(jī)械工程學(xué)院;現(xiàn)代機(jī)電裝備技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家重大科技成果轉(zhuǎn)化項(xiàng)目(2060403) 天津市自然科學(xué)基金重點(diǎn)項(xiàng)目(10JCZDJC23400)資助
【分類號】：TH132.41
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本文編號：2036109