基于剪切波变换对Si_(3)N_(4)陶瓷轴承内圈沟道表面缺陷检测的分析  

Surface defect detection and analysis of Si_(3)N_(4)ceramic bearing inner ring raceway based on shearlet transform

作　　者：廖达海 殷明帅 罗宏斌 张鑫 李汶洁 LIAO Dahai;YIN Mingshuai;LUO Hongbin;ZHANG Xin;LI Wenjie(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic University,Jingdezhen Jiangxi 333403,China;Jiangxi Ceramic Material Processing Technology Engineering Laboratory,Jingdezhen Ceramic University,Jingdezhen Jiangxi 333403,China)

机构地区：[1]景德镇陶瓷大学机械电子工程学院,江西景德镇333403 [2]景德镇陶瓷大学江西省陶瓷材料加工技术工程实验室,江西景德镇333403

出　　处：《航空动力学报》2024年第1期226-234,共9页Journal of Aerospace Power

基　　金：国家自然科学基金(51964022);江西省自然科学基金(20212BAB214033);江西省自然科学基金(20212ACB204012)。

摘　　要：为有效检测航空动力系统中Si_(3)N_(4)陶瓷轴承内圈沟道表面凹坑、划痕、擦伤的缺陷。采用中值滤波除去Si_(3)N_(4)陶瓷轴承内圈沟道原始图像零散噪点,对其处理图像进行剪切波变换,归一化阈值曲面法对变换后的剪切波系数进行重构、剪切波逆变换获取缺陷增强图像,对缺陷增强图像进行灰度阈值分割与识别分类,定位提取缺陷。基于剪切波变换的Si_(3)N_(4)陶瓷轴承内圈沟道的表面缺陷检测方法能有效的检测出Si_(3)N_(4)陶瓷轴承内圈沟道表面的缺陷。该方法对Si_(3)N_(4)陶瓷轴承内圈沟道表面缺陷提取的准确率可达97.50%,具有高精度与高准确性,满足预期要求。To effectively detect the defects of pits,scratches and abrasions on the raceway surface of Si_(3)N_(4)ceramic bearing inner ring in aviation power system,median filter was used to remove original image scattered noise of Si_(3)N_(4)ceramic bearing inner ring channel,and conduct its processing image's shear wave transform,and the normalized threshold surface method was adopted to reconstruct the conversion coefficient of shear wave,enable shear wave inverse transformation for defect enhancing image,gray threshold segmentation for defect enhancing image classification and recognition,and position to extract the defect.The surface defect detection method of Si_(3)N_(4)ceramic bearing inner racetrack based on shear wave transform can effectively detect the surface defect of Si_(3)N_(4)ceramic bearing inner racetrack.This method can extract surface defects of inner raceways of Si_(3)N_(4)ceramic bearing with 97.50%accuracy,which can meet the expected requirements.

关 键 词：Si_(3)N_(4)陶瓷轴承内圈 剪切波变换 表面缺陷检测 缺陷增强 缺陷提取 

分 类 号：V26[航空宇航科学与技术—航空宇航制造工程] TQ292[化学工程—有机化工]