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      可靠性滑油磨粒在線連續檢測裝置研究

      孫衍山12  武國同2  鄧可2  馬聞博1

      ( 1天津大學精密測試技術及儀器國家重點實驗室, 天津 300072;  2北京航峰科偉裝備技術股份有限公司,北京,100141)

       要:航空發動機軸承部件磨損是導致發動機失效,引起飛機重大事故的主要因素。滑油磨粒在線監測能有效發現航空發動機突發性劇烈磨損,及時預警失效,避免飛機出現重大事故。滑油磨粒在線檢測過程中,存在振動、電磁干擾噪聲復雜等主要技術障礙。為了解決這些問題,采用時間小波變換去噪聲和統計峭度濾波方法實現了滑油磨粒在線檢測的實時高效去噪。通過第三方測試和實際臺架比對和加裝發動機試飛測試,表明傳感器可靠性高抗干擾能力強。本傳感器產品已在飛機、風電齒輪箱、及汽輪機等廣泛應用,成為大型設備主動維護的重要手段。

      關鍵詞:滑油磨粒;在線連續檢測;小波去噪;統計峭度濾波;

      Research of continuously on-line detecting device with high reliability for wear debris in lubrication oil

      SUN Yan-shan12  WU Guo-tong2  DENG Ke2  MA Wen-bo1

      (1 Tianjin University, State Key Laboratory of Precision Measurement Technology and Instrument, Tianjin 300072;2 BEIJING HANG FENG KE WEI EQUIPMENT TECHNOLOGY CO.,LTDBEIJING100141

      Abstract: Aircraft engine bearing parts wear is the main cause of engine failure. Lubricating oil wear debris continuously on-line monitoring can effectively find the aircraft engine sudden severe wear and failure, timely warning to avoid a major accident plane. In the process of wear debris on-line detection, complex vibration and electromagnetic interference noise are main technical barriers. Using wavelet transform method and kurtosis statistics filter method implements real-time on-line de-noising efficiently. Through a third party test comparisons and equipped with engine test and actual test bench test, show that sensor reliability, high anti-interference ability. This sensor product has been used on the plane, wind power gear box, and the steam turbine widely,  become an important means of large equipment maintenance actively.

      Keywords: wear debris; on-line detection; wavelet de-noiseStatistical kurtosis filter ;

       

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