数字全息测量风电齿轮箱润滑油中磨粒实验研究  

Experimental Study on Digital Holographic Measurement of Wear Particles in Lubricating Oil of Wind Power Gearbox

作　　者：张柯挺 金其文 李承浩 林志明 吴学成[1] 吴迎春[1] ZHANG Keting;JIN Qiwen;LI Chenghao;LIN Zhiming;WU Xuecheng;WU Yingchun(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学,能源高效清洁利用全国重点实验室,杭州310027

出　　处：《新能源进展》2024年第6期681-687,共7页Advances in New and Renewable Energy

基　　金：浙江省自然科学基金项目(ZCLQ24E0601);国家自然科学基金项目(52276167);中央高校基本科研业务费专项资金项目(2022ZFJH004)。

摘　　要：在线监测润滑油中的磨损颗粒对及时评估风力发电机组齿轮箱的运行状态和实现故障预警具有重要意义。基于数字全息技术搭建了润滑油磨损颗粒在线监测实验系统,对含不同粒径大小、不同浓度磨粒的润滑油进行在线测量,并将粒径分布测量结果与激光粒度仪的测试结果进行对比,以验证测量系统的可行性与准确性。结果表明,在20~350μm粒径范围内,全息实验系统的测量结果与激光粒度仪的测量结果一致,中位径Dv50测量误差小于6%,能够满足对异常磨损颗粒的监测需求。此外,数字全息技术不仅能够准确测量磨损颗粒大小,还能够同步获取颗粒的形貌特征,以辅助分析齿轮箱的磨损程度和磨损部位,在润滑油磨粒在线监测领域具有进一步研究的价值。On-line monitoring of wear particles in lubricating oil can help to evaluate the operating status of wind turbine gearbox in time,which is of great significance for the early warning of potential faults.This paper established an online monitoring experimental system of lubricating oil wear particles based on digital holography.The lubricating oil containing different particle sizes and different concentrations of wear particles was measured,and the measurement results were compared with those of the laser particle size analyzer.The results show that in the particle size range of 20-350μm,particle size distribution measured by the holographic method is consistent with those of the laser particle size analyzer,and the measurement error of the median diameter Dv50 is less than 6%.In addition,digital holography can not only accurately measure the size of wear particles but also obtain the morphology characteristics of particles synchronously,which can assist in the analysis of gearbox wear degree and wear part.In conclusion,digital holography is valuable for further research and on-line application in monitoring of lubricating oil wear particles.

关 键 词：数字全息 润滑油 磨损颗粒 在线监测 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]