可靠性滑油磨粒在线连续检测装置研究

孙衍山^1，2  武国同²  邓可²  马闻博¹

( 1天津大学精密测试技术及仪器国家重点实验室, 天津　300072; 　2北京航峰科伟装备技术股份有限公司，北京，100141）

摘  要：航空发动机轴承部件磨损是导致发动机失效，引起飞机重大事故的主要因素。滑油磨粒在线监测能有效发现航空发动机突发性剧烈磨损，及时预警失效，避免飞机出现重大事故。滑油磨粒在线检测过程中，存在振动、电磁干扰噪声复杂等主要技术障碍。为了解决这些问题，采用时间小波变换去噪声和统计峭度滤波方法实现了滑油磨粒在线检测的实时高效去噪。通过第三方测试和实际台架比对和加装发动机试飞测试，表明传感器可靠性高抗干扰能力强。本传感器产品已在飞机、风电齿轮箱、及汽轮机等广泛应用，成为大型设备主动维护的重要手段。

关键词：滑油磨粒；在线连续检测；小波去噪；统计峭度滤波;

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

SUN Yan-shan^1，2  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.,LTD，BEIJING，100141）

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-noise；Statistical kurtosis filter ;

 

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