TY - GEN
T1 - A new statistical model for rolling element bearing fault signals based on alpha-stable distribution
AU - Li, Changning
AU - Yu, Gang
PY - 2010
Y1 - 2010
N2 - A new statistical model for rolling element bearing fault signals is proposed based on alpha-stable distribution. Such a non-Gaussian model can accurately describe statistical characteristic of bearing fault signals with impulsive behavior. The characteristic exponent α of bearing fault signals with different fault degree is estimated by a stable distribution parameter estimation method. Estimation result explains the bearing fault signals belongs alpha-stable process. At the same time, alpha-stable density of every bearing fault signal fit well the empirical probability density in log-log plots, and their tail possess the same heavy tail behavior. Then the statistical model for different fault degree bearing signals all are valid.
AB - A new statistical model for rolling element bearing fault signals is proposed based on alpha-stable distribution. Such a non-Gaussian model can accurately describe statistical characteristic of bearing fault signals with impulsive behavior. The characteristic exponent α of bearing fault signals with different fault degree is estimated by a stable distribution parameter estimation method. Estimation result explains the bearing fault signals belongs alpha-stable process. At the same time, alpha-stable density of every bearing fault signal fit well the empirical probability density in log-log plots, and their tail possess the same heavy tail behavior. Then the statistical model for different fault degree bearing signals all are valid.
KW - Alpha-stable distribution
KW - Bearing fault signals
KW - Impulse-like signal
KW - Parameter estimation
UR - https://www.scopus.com/pages/publications/77951176849
U2 - 10.1109/ICCMS.2010.309
DO - 10.1109/ICCMS.2010.309
M3 - 会议稿件
AN - SCOPUS:77951176849
SN - 9780769539416
T3 - ICCMS 2010 - 2010 International Conference on Computer Modeling and Simulation
SP - 386
EP - 390
BT - ICCMS 2010 - 2010 International Conference on Computer Modeling and Simulation
T2 - 2010 International Conference on Computer Modeling and Simulation, ICCMS 2010
Y2 - 22 January 2010 through 24 January 2010
ER -