摘要
针对径向柱塞马达壳体在磨削过程中产生的磨削烧伤问题,提出了一种基于巴克豪森噪声(BN)的马达壳体磨削烧伤检测方法,克服传统酸洗法污染环境、损坏工件和效率精度较低问题。首先,介绍巴克豪森噪声测试仪工作原理及其磁弹参数(MP)与工件磨削烧伤对应关系,综合比较法和扫描法确定检测激励电压;其次,通过试验设计(DOE)对测试数据进行分析,基于残差分析结果,回归模型能够有效拟合正常样品的MP值,从而实现对其准确预测;最后,对马达壳体内表面进行残余应力测试,结果表明残余应力相对稳定,与巴克豪森噪声属于正相关。研究结果显示正常样本的MP值趋于正态分布,样本的MP值在95%置信水平下的区间为41.573~43.573;试验验证了该方法在检测径向柱塞马达壳体磨削烧伤方面的有效性。
The study proposes a method based on Barkhausen noise for detecting grinding burn in the radial piston motor shell,aiming to address issues such as environmental pollution,workpiece damage,and the low efficiency and accuracy of traditional pickling methods.Firstly,it introduces the working principle of the Barkhausen noise tester and explains the relationship between its magnetoelastic parameters(MP)and workpiece grinding burn.The excitation voltage for detection is determined using a comparison and scanning method.Secondly,Design of Experiment(DOE)is employed to analyze test data.Based on residual analysis results,a regression model effectively fits the MP value of normal samples for accurate prediction.Finally,residual stress is measured on the inner surface of the motor housing.The results indicate that residual stress is relatively stable and positively correlated with Barkhausen noise.Furthermore,it shows that MP values tend to be normally distributed among normal samples at a 95%confidence level within a range from 41.573 to 43.573.Experimental findings demonstrate that this method effectively detects grinding burn in radial piston motor housings.
作者
李琳桦
陆泓宇
刘宏宇
邱龙涛
季晨
张兵
LI Lin-hua;LU Hong-yu;LIU Hong-yu;QIU Long-tao;JI Chen;ZHANG Bing(Danfoss Power System(Jiangsu)Co.,Ltd.,Zhenjiang 212013,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)
出处
《液压气动与密封》
2025年第12期24-31,共8页
Hydraulics Pneumatics & Seals
基金
江苏省内曲线式柱塞马达工程技术研究中心建设项目(BM2022755)。
关键词
磁弹法
磨削烧伤检测
巴克豪森噪声
试验设计
应力测试
magnetoelastic method
grinding burn detection
Barkhausen noise
design of experiment
stress test
