Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity
Cyclostationarity has been widely used as a useful signal processing technique to extract the hidden periodicity of the energy flow of the mechanical vibration signature. However, the conventional cyclostationarity is restricted to analyzing the real-valued signal, which is incapable of processing t...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/952958 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563338729488384 |
|---|---|
| author | Chang Peng Lin Bo |
| author_facet | Chang Peng Lin Bo |
| author_sort | Chang Peng |
| collection | DOAJ |
| description | Cyclostationarity has been widely used as a useful signal processing technique to extract the hidden periodicity of the energy flow of the mechanical vibration signature. However, the conventional
cyclostationarity is restricted to analyzing the real-valued signal, which is incapable of processing the constructed complex-valued signal obtained from the journal bearing supported rotor system operating
with oil film instability. In this work, the directional cyclostationary parameters, such as directional cyclic mean, directional cyclic autocorrelation, and directional spectral correlation density, are defined based on
the principle of directional Wigner distribution. Practical experiment has demonstrated the effectiveness and superiority of the proposed method in the investigation of the instantaneous planar motion of the
journal bearing supported rotor system. |
| format | Article |
| id | doaj-art-124cc5bebfde4d66a8bc37641a0f0832 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-124cc5bebfde4d66a8bc37641a0f08322025-02-03T01:20:25ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/952958952958Vibration Signal Analysis of Journal Bearing Supported Rotor System by CyclostationarityChang Peng0Lin Bo1State Key Laboratory of Mechanical Transmission, Chongqing University, 1510 Main Teaching Building, Chongqing, ChinaState Key Laboratory of Mechanical Transmission, Chongqing University, 1510 Main Teaching Building, Chongqing, ChinaCyclostationarity has been widely used as a useful signal processing technique to extract the hidden periodicity of the energy flow of the mechanical vibration signature. However, the conventional cyclostationarity is restricted to analyzing the real-valued signal, which is incapable of processing the constructed complex-valued signal obtained from the journal bearing supported rotor system operating with oil film instability. In this work, the directional cyclostationary parameters, such as directional cyclic mean, directional cyclic autocorrelation, and directional spectral correlation density, are defined based on the principle of directional Wigner distribution. Practical experiment has demonstrated the effectiveness and superiority of the proposed method in the investigation of the instantaneous planar motion of the journal bearing supported rotor system.http://dx.doi.org/10.1155/2014/952958 |
| spellingShingle | Chang Peng Lin Bo Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity Shock and Vibration |
| title | Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity |
| title_full | Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity |
| title_fullStr | Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity |
| title_full_unstemmed | Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity |
| title_short | Vibration Signal Analysis of Journal Bearing Supported Rotor System by Cyclostationarity |
| title_sort | vibration signal analysis of journal bearing supported rotor system by cyclostationarity |
| url | http://dx.doi.org/10.1155/2014/952958 |
| work_keys_str_mv | AT changpeng vibrationsignalanalysisofjournalbearingsupportedrotorsystembycyclostationarity AT linbo vibrationsignalanalysisofjournalbearingsupportedrotorsystembycyclostationarity |