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  本文關(guān)鍵詞：磁流變阻尼器對齒輪系統(tǒng)減振降噪實驗研究　出處：《機械科學與技術(shù)》2017年07期 　論文類型：期刊論文

  更多相關(guān)文章： 磁流變阻尼器 齒輪 振動 噪聲 寬頻減振

【摘要】：針對齒輪箱在運行中振動噪聲較大的問題,提出一種將磁流變阻尼器用于齒輪傳動系統(tǒng)的振動噪聲控制的方法。搭建了齒輪減振降噪實驗臺,通過對軸承座和轉(zhuǎn)軸的振動、以及齒輪噪聲聲壓級的監(jiān)測,實驗研究了磁流變阻尼器對齒輪系統(tǒng)的減振降噪特性。結(jié)果表明,磁流變阻尼器能有效抑制齒輪傳動系統(tǒng)的振動與噪聲,軸承座振動加速度有效值及振動烈度的幅值降幅在50%左右,轉(zhuǎn)軸軸振峰峰值降幅達55%;各頻率的噪聲聲壓級均有8 d B左右的降低。阻尼器能抑制嚙合頻率及其高次諧波、轉(zhuǎn)頻及其高次諧波等各頻率下的振動噪聲,實現(xiàn)寬頻減振;且能有效保證齒輪傳動系統(tǒng)在較寬的轉(zhuǎn)速范圍內(nèi)平穩(wěn)運行。
[Abstract]:In order to solve the problem that the vibration and noise of the gearbox is very large, a method of applying Mr damper to control the vibration and noise of gear transmission system is put forward, and the experimental platform of gear vibration reduction and noise reduction is built. Based on the vibration of bearing seat and shaft, and the monitoring of noise level of gear, the characteristics of reducing vibration and noise of gear system by magnetorheological damper are studied experimentally. The magnetorheological damper can effectively suppress the vibration and noise of the gear transmission system. The amplitude of the effective value of vibration acceleration and vibration intensity of the bearing block is reduced by about 50%, and the peak value of the shaft vibration peak decreases by 55. The noise pressure level of each frequency is reduced by about 8 dB. The damper can suppress the vibration noise of meshing frequency and its high harmonic, turn frequency and its high harmonic frequency, and realize broadband vibration reduction. And can effectively ensure that the gear transmission system in a wide range of speed smooth operation.
【作者單位】： 北京化工大學機電工程學院;
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃項目(973項目)(2012CB026000) 北京市重點學科項目資助
【分類號】：TH132.41
【正文快照】： 齒輪傳動系統(tǒng)是機械傳動中較為常見的傳動形式,具有承載能力大、可靠性高等優(yōu)點。齒輪系統(tǒng)運轉(zhuǎn)時若振動過大容易出現(xiàn)故障,造成重大事故[1];而且齒輪噪聲的頻率一般處于200~5 000 Hz之間,人耳對這一頻率范圍的噪聲尤為敏感[2]。因此,研究齒輪振動噪聲的控制方法具有十分重要的

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