TY - GEN
T1 - Time-frequency distribution decomposition with application to detection of rotor rub-impact fault
AU - Yan, Wang
AU - Zhang, Zhousuo
AU - Wang, Shibin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/6
Y1 - 2015/7/6
N2 - In this paper, we introduce a new data analysis method, called time-frequency distribution decomposition (TFDD), to extract the components of vibration signal one by one for rotor rub-impact fault. When the early rub-impact fault occurs in the rotor system, the vibration signal will present frequency modulation feature because of the periodic rub-impact between the stator and the rotor. Through approximating phase and amplitude functions of each component of vibration signal, the feature of the original signal can be characterized by these functions. Moreover, each component can be analyzed individually. The validity of the method is demonstrated on a real rotor system of a gas turbine with rub-impact fault. The analysis of the application shows that the TFDD is powerful in analysis of nonlinear and nonstationary signals and is an effective tool for the detection of rub-impact faults.
AB - In this paper, we introduce a new data analysis method, called time-frequency distribution decomposition (TFDD), to extract the components of vibration signal one by one for rotor rub-impact fault. When the early rub-impact fault occurs in the rotor system, the vibration signal will present frequency modulation feature because of the periodic rub-impact between the stator and the rotor. Through approximating phase and amplitude functions of each component of vibration signal, the feature of the original signal can be characterized by these functions. Moreover, each component can be analyzed individually. The validity of the method is demonstrated on a real rotor system of a gas turbine with rub-impact fault. The analysis of the application shows that the TFDD is powerful in analysis of nonlinear and nonstationary signals and is an effective tool for the detection of rub-impact faults.
KW - Instantaneous amplitude
KW - Instantaneous frequency
KW - Rub-impact
KW - Signal decomposition
KW - Time-frequency analysis
UR - https://www.scopus.com/pages/publications/84938843246
U2 - 10.1109/I2MTC.2015.7151381
DO - 10.1109/I2MTC.2015.7151381
M3 - 会议稿件
AN - SCOPUS:84938843246
T3 - Conference Record - IEEE Instrumentation and Measurement Technology Conference
SP - 858
EP - 862
BT - 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2015
Y2 - 11 May 2015 through 14 May 2015
ER -