1. 西安交通大学机械工程学院,西安,710049
2. 西安交通大学机械制造系统工程国家重点实验室,西安,710049
网络首发:2007-05-10,
纸质出版:2007
移动端阅览
张庆 1, 徐光华 1, 王晶 1, 等. 基于支持向量域描述的多故障诊断动态模型[J]. 西安交通大学学报, 2007,41(5):593-597.
张庆 1, 徐光华 1, 王晶 1, et al. Dynamic Multi-Fault Diagnosis Model Based on Support Vector Domain Description[J]. 2007, 41(5): 593-597.
为了提高多故障诊断中对新故障类别和新故障数据的适应性
提出了一种新的多故障诊断动态模型.该模型采用支持向量域描述算法(SVDD)对多类故障进行单独训练
建立独立而封闭的特征空间
满足故障类别的动态增加需要
并采用样本与各特征空间的相对距离进行了多故障的混合识别.应用在线SVDD算法
在已有的故障特征分布信息基础上
通过更新操作
学习新数据信息
从而实现了故障模式的动态调整.通过仿真和机械故障实例数据的检验
表明该模型能够动态地提取多类故障的特征信息
改善诊断学习过程的适应性.
To improve the adaptability of multi-fault diagnosis
a novel dynamic diagnosis model is proposed
which includes two main techniques: independent training and online adjusting for multi-fault modes. The data of every fault class are trained by support vector domain description(SVDD)to obtain the optimal enclosing feature spaces. Due to the independence of these distribution spaces
new classes can be generated facilely. The relative distances between fault data and the distribution spaces decide which class they belong to. Moreover
an online SVDD algorithm is developed to update the feature space
and the distribution information of new data is appended to the existing feature space timely. And the simulated and practical data are analyzed to verify the effectiveness of the model for dynamic multi-fault diagnosis.
徐敏.设备故障诊断手册[M].西安:西安交通大学出版社, 1998: 30-44.
John S T, Nello C. 模式分析的核方法[M]. 赵玲玲, 苏明, 曾华军,译. 北京:机械工业出版社, 2006: 126-163.
Tax D M J, Duin R P W. Support vector domain description[J]. Pattern Recognition Letters, 1999, 20(11-13):1191-1199.
李凌均,张周锁,何正嘉.基于支持向量数据描述的机械故障诊断研究[J]. 西安交通大学学报,2003,37(9):910-913.
Li Lingjun, Zhang Zhousuo, He Zhengjia. Research of mechanical system fault diagnosis based on support vector data description[J]. Journal of Xi'an Jiaotong University, 2003,37(9):910-913.
Lau K W, Wu Q H. Online training of support vector classifier[J]. Pattern Recognition, 2003,36(8):1913-1920.
Lin Chih-Jen. On the convergence of the decomposition method for support vector machines[J]. IEEE Transactions on Neural Networks, 2001,12(6):1288-1298.
于达仁,胡清华,鲍文.融合粗糙集和模糊聚类的连续数据知识发现[J].中国电机工程学报,2004,24(6):205-210.
Yu Daren, Hu Qinghua, Bao Wen. Combining rough set methodology and fuzzy clustering for knowledge discovery from quantitative data[J]. Proceedings of the Chinese Society for Electrical Engineering, 2004,4(6):205-210.
Shen Lixiang, Francis E H, Qu Liangsheng, et al. Fault diagnosis using rough sets theory[J].Computers in Industry, 2000,43(1):61-72.
0
浏览量
5
下载量
6
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621