基于运动目标检测的润滑油膜可视化监测  

Visualization Monitoring of Lubricating Oil Film Based on Moving Target Detection

作　　者：薛倩 艾东升 孙钦升 马敏 XUE Qian;AI Dong-sheng;SUN Qin-sheng;MA Min(School of Electronic Information and Automation,Civil Aviation University of China,Tianjin,300300,China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津300300

出　　处：《计算机仿真》2018年第12期425-429,共5页Computer Simulation

基　　金：国家自然科学基金项目(61401466);中央高校基本科研业务费中国民航大学专项(3122013C007);中国民航大学研究生创新基金(Y17-33)

摘　　要：针对油气润滑过程中由于油膜厚度太大浪费润滑油和油膜厚度太小导致机械欠润滑的问题。提出利用电容层析成像(ECT)技术首先在线重建油气润滑管道截面图,然后利用帧间差分获得油气界面的大致轮廓,接着对帧间差分所得的目标轮廓进行曲线拟合,从而获得油膜边界图像并显示在重建图像上的方法。在油气润滑实验装置上进行油膜监测实验,利用8电极ECT系统重建滑油管道的截面图,成像结果表明,运动目标检测方法可较准确显示出重建图像上的油气界面。A visualization monitoring of lubricating oil film method is proposed.First,the electrical capacitance tomography (ECT)technology is used to reconstmct sectional view of oil-gas lubrication pipeline online.Then,the inter frame difference method is utilized to obtain the outline of the oil -gas interface.Thereafter,the curve fitting method is applied to obtain a closed curve for the profile obtained from inter frame difference method,so as to determine the oil film boundary and display it on the reconstructed image.Oil film monitoring experiment is carried out on an oil-air lubrication facility,and an 8-electrode ECT system is installed to reconstruct cross-section images of the oil pipe.The resuh shows that the proposed method is capable of visualizing the oil-gas interface accurately.

关 键 词：气液两相流 电容层析成像 运动目标检测 图像重建 

分 类 号：TH814[机械工程—仪器科学与技术]