应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜    

Znn3bq.jpeg
小木虫论坛-学术科研互动平台 » 文献求助区 » 检索知识 » 文献检索 » 期刊论文Ei收录号求助
41/1返回列表
查看: 613  |  回复: 3
只看楼主 @他人 存档 新回复提醒 (忽略) 收藏    在APP中查看
本帖产生 1 个 LS-EPI ，点击这里进行查看

malan018

金虫 (正式写手)
本帖内容被屏蔽

» 猜你喜欢
1楼 2013-06-19 15:03:51
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

baiyuefei

版主 (文学泰斗)

风雪

优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主优秀版主优秀版主优秀版主

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
malan018: 金币+10, ★★★★★最佳答案 2013-06-19 15:15:16
Accession number:


20132116362862





Title:

Research on feature extraction of rolling bearing incipient fault based on Morlet wavelet transform





Authors:

Ma, Lun1 ; Kang, Jianshe1 ; Meng, Yan2; Lv, Lei3





Author affiliation:

1Department of Equipment Command and Management, Ordnance Engineering College, Shijiazhuang 050003, China






2Hebei Electric Power Design and Research Institute, Shijiazhuang 050003, China






362191 Troops of PLA, Huaxian 714100, China





Corresponding author:

Ma, L. (malun018@163.com)





Source title:

Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument





Abbreviated source title:

Yi Qi Yi Biao Xue Bao





Volume:

34





Issue:

4





Issue date:

April 2013





Publication year:

2013





Pages:

920-926





Language:

Chinese





ISSN:

02543087





CODEN:

YYXUDY





Document type:

Journal article (JA)





Publisher:

Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China





Abstract:

Aiming at the problem that at early stage of bearing fault, the feature components of the original vibration data are easy to be submerged in noise signal and can not be detected in time. According to the de-noising principle of Morlet wavelet transform, a method is presented, which determines the optimal scale parameter based on scale related power distribution, so that the signal is filtered under this scale and the impact feature components are extracted. The main filtering procedures include: the minimum Shannon entropy is used to optimize the Morlet wave shape factor, the best match between mother wavelet and signal fault feature is realized; the scale-power spectrum is plotted with the wavelet transform coefficients of the best Morlet continuous wavelet under different transform scales; and according to the accumulative characteristic of the fault feature power in specific scale range, the scale parameter with best filtering effect is selected from the extreme points in the scale power spectrum. The actual processing result for bearing full lifetime vibration datasets shows that the proposed method can extract the weak feature components and detect the existence of related outer-race fault in advance compared with root-mean-square trend. So this method can be regarded as an effective approach for diagnosing bearing incipient fault.





Number of references:

16





Main heading:

Wavelet transforms





Controlled terms:

Bearings (machine parts)  -  Feature extraction  -  Optimization  -  Power spectrum  -  Roller bearings





Uncontrolled terms:

Incipient fault feature extraction  -  Morlet wavelet transform  -  Rolling bearings  -  Scale-power spectrum  -  Shannon entropy





Classification code:

601.2 Machine Components -  711 Electromagnetic Waves -  716 Telecommunication; Radar, Radio and Television -  921 Mathematics -  941 Acoustical and Optical Measuring Instruments





Database:

Compendex






Compilation and indexing terms, © 2013 Elsevier Inc.
赞一下 回复此楼
2楼2013-06-19 15:10:10
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

baiyuefei

版主 (文学泰斗)

风雪

优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主优秀版主文献杰出贡献优秀版主优秀版主优秀版主优秀版主优秀版主优秀版主

【答案】应助回帖


oven1986: 检索EPI+1, 感谢应助！ 2013-08-30 15:22:19
Accession number:


20132116362862
赞一下 回复此楼

» 本帖已获得的红花（最新10朵）

malan018
3楼2013-06-19 15:10:35
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

malan018

金虫 (正式写手)
送红花一朵
引用回帖:
3楼: Originally posted by baiyuefei at 2013-06-19 15:10:35
Accession number:


20132116362862

非常感谢！
回复此楼
4楼2013-06-19 15:15:45
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 malan018 的主题更新
41/1返回列表
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 国自然面上和省基金B类撒花 +6 花田半亩～白 2026-04-21 6/300 2026-04-22 10:55 by 3126142009
[考博] 华师大读博 +3 xq83 2026-04-22 5/250 2026-04-22 10:42 by xq83
[教师之家] 又一批高校组建人工智能学院 师资行吗 不是骗人吗 +5 yexuqing 2026-04-19 5/250 2026-04-22 10:01 by easeheart
[考博] 申博/考博 +4 啃面包的小书虫 2026-04-17 8/400 2026-04-21 16:26 by 啃面包的小书虫
[考研] 一志愿A区211，22408 321求调剂 +7 随心所欲☆ 2026-04-15 8/400 2026-04-21 08:22 by Equinoxhua
[考研] 295分求调剂 +6 ?要上岸? 2026-04-17 6/300 2026-04-21 08:18 by Equinoxhua
[考研] 一志愿中科大材料与化工，353分还有调剂学校吗 +11 否极泰来2026 2026-04-15 13/650 2026-04-20 22:31 by Equinoxhua
[论文投稿] 期刊推荐 +3 材料研究生 2026-04-15 5/250 2026-04-20 16:02 by 豆豆7758
[论文投稿] 有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业 20+4 之护着 2026-04-16 7/350 2026-04-20 15:45 by 豆豆7758
[考研] 337求调剂 +3 jyz04 2026-04-18 3/150 2026-04-20 12:24 by 研可安
[考博] 申博 +3 Xyyx. 2026-04-18 3/150 2026-04-20 10:44 by YuY66
[考研] 求计算机方向调剂 +3 Toffee2 2026-04-16 6/300 2026-04-19 22:37 by ll叶
[考研] 304求调剂 +8 castLight 2026-04-16 8/400 2026-04-19 17:14 by 中豫男
[考研] 求调剂 +10 小聂爱学习 2026-04-16 12/600 2026-04-19 16:51 by 中豫男
[考研] 求调剂 +6 苦命人。。。 2026-04-18 7/350 2026-04-19 16:27 by 中豫男
[考研] 300求调剂 +12 橙a777 2026-04-15 12/600 2026-04-18 23:51 by 路病情
[考研] 接受任何调剂 +6 也就是栗子 2026-04-17 7/350 2026-04-18 17:20 by 涵竹刘
[考研] 260求调剂 +4 Zyt1314520.. 2026-04-17 5/250 2026-04-18 08:28 by babysonlkd
[考研] 急需调剂 +9 绝不放弃22 2026-04-15 10/500 2026-04-18 08:09 by chixmc
[考研] 322求调剂 +6 tekuzu 2026-04-17 6/300 2026-04-17 13:48 by Espannnnnol
信息提示
关闭
请填处理意见
关闭