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[1]田淑华,王华,洪荣晶.基于多特征集融合与多变量支持向量回归的回转支承剩余寿命评估[J].南京工业大学学报(自然科学版),2016,38(03):50-57.[doi:10.3969/j.issn.1671-7627.2016.03.009]
　TIAN Shuhua,WANG Hua,HONG Rongjing.Residual life assessment of slewing bearing based on multivariate eigenvalues fusion and support vector regression[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(03):50-57.[doi:10.3969/j.issn.1671-7627.2016.03.009]
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基于多特征集融合与多变量支持向量回归的回转支承剩余寿命评估()
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《南京工业大学学报（自然科学版）》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年03期
页码:
50-57
栏目:
出版日期:
2016-05-28

文章信息/Info

Title:
Residual life assessment of slewing bearing based on multivariate eigenvalues fusion and support vector regression
文章编号:
1671-7627(2016)03-0050-08
作者:
田淑华1; 王华1; 2; 洪荣晶1
1.南京工业大学 机械与动力工程学院,江苏 南京 211800; 2.洛阳LYC轴承有限公司,河南 洛阳 471003
Author(s):
TIAN Shuhua1; WANG Hua1; 2; HONG Rongjing1
1.College of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211800,China; 2.Luoyang LYC Bearing Co. Ltd., Luoyang 471003,China
关键词:
回转支承;  特征值;  主成分分析;  多变量支持向量回归;  寿命评估
Keywords:
slewing bearing;  eigenvalue;  PCA;  MSVR;  residual life assessment
分类号:
TP206.3;TP18
DOI:
10.3969/j.issn.1671-7627.2016.03.009
文献标志码:
A
摘要:
针对回转支承剩余寿命难以评估的问题,提出一种基于温度、扭矩、振动信号时域内多个特征值融合和多变量支持向量回归(MSVR)的剩余寿命评估新方法。该方法通过主成分分析(PCA)求得温度、扭矩、振动信号性能衰退指标量化回转支承性能衰退规律,以此作为输入量构建多变量支持向量回归回转支承剩余寿命评估模型。MSVR克服了结构简单、信息匮乏等缺点,实现变量之间冗余信息的消除和样本数据潜在信息的最大挖掘,采用回转支承全寿命实验数据对评估模型进行检验,结果表明 MSVR可获得准确的评估结果。
Abstract:
A residual life assessment for slewing bearing based on characteristic indexes in time domain including temperature,torque and vibration information fusion and multivariable support vector regression was proposed. The principle analysis(PCA)was used to obtain recession indicators(temperature, torque and vibration signal)and quantize the degradation pattern of slewing bearing performance. With the three recession indicators being used as input data, a residual life assessment model for slewing bearing based on multivariable support vector regression was established. Overcoming the shortcomings of simple structure and information scarce, the proposed method was able to obtain the potential information in sample data and to eliminate redundant information contained between characteristic values,and was applied in lab slewing bearing data, results showed that multivariable support vector regression(MSVR)could obtain accurate assessment results.

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备注/Memo

备注/Memo:
收稿日期:2014-06-30
基金项目:国家自然科学基金(51105191,51375222); 江苏省自然科学基金(BK2011797)
作者简介:田淑华(1986—),女,山东菏泽人,硕士,主要研究方向为智能算法的剩余寿命评估; 王华(联系人),副教授,E-mail:wanghua@njtech.edu.cn.
引用本文:田淑华,王华,洪荣晶.基于多特征集融合与多变量支持向量回归的回转支承剩余寿命评估[J].南京工业大学学报(自然科学版),2016,38(3):50-57..
更新日期/Last Update: 2016-05-20