文件名称: cluster_VMDaFCM_casedat下载  收藏√  [投票:非常好  5  4  3  2  1 投票:太差了]
  所属分类: matlab
  开发工具: matlab
  文件大小: 382 KB
  上传时间: 2016-09-11
  下载次数: 9
  提 供 者: 陈帅
 详细说明:为了精准、稳定地提取滚动轴承故障特征,提出了基于变分模态分解和奇异值分解的特征提取方法,采用标准模糊C均值聚类(fuzzy C means clustering, FCM)进行故障识 别。对同一负荷下的已知故障信号进行变分模态分解,利用 奇异值分解技术进一步提取各模态特征,通过FCM形成标准聚类中心,采用海明贴近度对测试样本进行分类,并通过计算分类系数和“卜均模糊嫡对分类性能进行评价,将该方法 应用于滚动轴承变负荷故障诊断。通过与基于经验模态分解的特征提取方法对比,该方法对标准FCM初始化条件小敏感,在同负荷故障诊断中表现出更好的分类性能 变负荷故障诊断时,除外圈故障特征线发生明显迁移,其他测试样本故障特征线仍在原聚类中心附近,整体故障识别率保持在100 ,因此,该方法能精确、稳定提取故障特征,为实际滚动轴承智能故障诊断提供参考。- In order to extract fault features of rolling bearing precisely and steadily, a method which is based on variational mode decomposition(VMD) and singular value decomposition was proposed for fault diagnosis using standard fuzzy C means clustering(FCM). First of all, the known fault signals measured in the same load but with different faults were decomposed by VMD, and the modes characteristics were further extracted using singular value decomposition technique,forming the standard clustering centers by FCM, and then the test samples were clustered by a Hamming nearness approach, and the classification performance was uated by calculating classification coefficient and average fuzzy entropy. At last, the method was applied in rolling bearing fault diagnosis under variable loads. By comparing with a method based on EMD, this approach is not sensitive to the initialization of standard FCM, and exhibits better classification performance in the same load fault diagnosis Fo
文件列表(点击判断是否您需要的文件,如果是垃圾请在下面评价投诉):
  cluster_VMD&FCM_casedat
  .......................\EMI.m
  .......................\FCMClus2t.m
  .......................\KFCMClust.m
  .......................\MI.m
  .......................\Main.fig
  .......................\Main.m
  .......................\VMD.m
  .......................\VMD_sin_center_f.m
  .......................\VMD_singular.m
  .......................\VMD_test.m
  .......................\VMD_test_original.m
  .......................\VMD_winddata.m
  .......................\cluster_SAME_con_VMD_casedata.asv
  .......................\cluster_SAME_con_VMD_casedata.m
  .......................\cluster_var1_con_VMD_casedata.asv
  .......................\cluster_var1_con_VMD_casedata.m
  .......................\cluster_var2_con_VMD_casedata.asv
  .......................\cluster_var2_con_VMD_casedata.m
  .......................\cluster_var3_con_VMD_casedata.asv
  .......................\cluster_var3_con_VMD_casedata.m
  .......................\distfcm.m
  .......................\emd_vmd_con.asv
  .......................\emd_vmd_con.m
  .......................\fuzzydist.m
  .......................\hua_baoluo.m
  .......................\hua_fft1.asv
  .......................\hua_fft1.m
  .......................\hua_xihua.m
  .......................\imssdata.mat
  .......................\initfcm.m
  .......................\labview_data.m
  .......................\matlab.dat
  .......................\matlab1.dat
  .......................\muting.m
  .......................\plot_imf.m
  .......................\stepfcm11.m
  .......................\stepfcm_hxm.m
  .......................\test.m
  .......................\test2.m
 输入关键字,在本站267万海量源码库中尽情搜索:  帮助
 [LMD.rar] - LMD算法,对信号进行LMD分解,分解的层数可由自己定,并且能得出分解波形~
 [2014-Science-clustering.rar] - 2014年发表在Science中的一篇文章Clustering by fast search and find of density peaks,其中还包括了作者用到的数据集和MATLAB源程序
 [VMD_2D.zip] - 二维变模态分解(TWO-DIMENSIONAL VARIATIONAL MODE DECOMPOSITION),自适应的将图像分解为不同的模态,包含代码和对应的论文
 
 [VariationalPModePDecomposition.rar] - 变分模态分解方法,里面有快速傅立叶变化,不同于经验模态分解。
 [VMD.zip] - 变模式分解(Variational Mode Decomposition),实现非线性、非平稳信号处理,解决经验模式分解(emd)缺陷,包含代码和对应的文章
 [memd--denoising.rar] - memd 多变量经验模态分解去噪 滤波,matlab源代码,用于电磁辐射、生物医学信号滤波处理
 [localization-algorithms-.rar] - WSN 经典定位算法 包括: Centoid, Bounding_box, Grid_Scan, RSSI, DV_hop, MDS_MAP,APIT