Vibration analysis has been widely accepted as a common and reliable method for bearing fault identification, however, the presence of noise in the measured signal poses the maximum amount of difficulty. Therefore, for the clearer detection of defect frequencies related to bearing faults, a denoising technique based on the Kalman filtering algorithm is presented in this paper. The Kalman filter yields a linear, unbiased, and minimum mean error variance recursive algorithm to optimally estimate the unknown states of a dynamic system from noisy data taken at discrete real time intervals. The dynamics of a rotor bearing system is presented through a linear model, where displacement and velocity vectors are chosen as states of the system. Process noise and measurement noise in the equations of motion take into account the modeling inaccuracies and vibration from other sources, respectively. The covariance matrix of the process noise has been obtained through the transfer function approach. The efficiency of the proposed technique is validated through experiments. Periodic noise and random noises obeying the white Gaussian, colored Gaussian and non-Gaussian distribution have been simulated and mixed with a clean experimental signal in order to study the efficiency of the standard Kalman filter under various noisy environments. Additionally, external vibrations to the test rig have been imparted through an electromechanical shaker. The results indicate an improvement in the signal to noise ratio, resulting in the clear identification of characteristic defect frequencies after passing the signal through the Kalman filter. The authors find that there is sufficient potential in using the Kalman filter as an effective tool to denoise the bearing vibration signal.
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June 2014
Research-Article
Extracting Rolling Element Bearing Faults From Noisy Vibration Signal Using Kalman Filter
Sidra Khanam,
Sidra Khanam
1
Industrial Tribology, Machine Dynamics,
and Maintenance Engineering Centre (ITMMEC),
e-mail: sidra.khanam10@gmail.com
and Maintenance Engineering Centre (ITMMEC),
Indian Institute of Technology
, Delhi
,New Delhi 110 016
, India
e-mail: sidra.khanam10@gmail.com
1Corresponding author.
Search for other works by this author on:
J. K. Dutt,
J. K. Dutt
Department of Mechanical Engineering,
e-mail: jkrdutt@yahoo.co.in
Indian Institute of Technology
, Delhi
,New Delhi-110 016
, India
e-mail: jkrdutt@yahoo.co.in
Search for other works by this author on:
N. Tandon
N. Tandon
Industrial Tribology, Machine Dynamics,
and Maintenance Engineering Centre (ITMMEC),
e-mail: ntandon@itmmec.iitd.ernet.in
and Maintenance Engineering Centre (ITMMEC),
Indian Institute of Technology
, Delhi
,New Delhi 110 016
, India
e-mail: ntandon@itmmec.iitd.ernet.in
Search for other works by this author on:
Sidra Khanam
Industrial Tribology, Machine Dynamics,
and Maintenance Engineering Centre (ITMMEC),
e-mail: sidra.khanam10@gmail.com
and Maintenance Engineering Centre (ITMMEC),
Indian Institute of Technology
, Delhi
,New Delhi 110 016
, India
e-mail: sidra.khanam10@gmail.com
J. K. Dutt
Department of Mechanical Engineering,
e-mail: jkrdutt@yahoo.co.in
Indian Institute of Technology
, Delhi
,New Delhi-110 016
, India
e-mail: jkrdutt@yahoo.co.in
N. Tandon
Industrial Tribology, Machine Dynamics,
and Maintenance Engineering Centre (ITMMEC),
e-mail: ntandon@itmmec.iitd.ernet.in
and Maintenance Engineering Centre (ITMMEC),
Indian Institute of Technology
, Delhi
,New Delhi 110 016
, India
e-mail: ntandon@itmmec.iitd.ernet.in
1Corresponding author.
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received December 17, 2012; final manuscript received January 29, 2014; published online April 1, 2014. Assoc. Editor: Alan Palazzolo.
J. Vib. Acoust. Jun 2014, 136(3): 031008 (11 pages)
Published Online: April 1, 2014
Article history
Received:
December 17, 2012
Revision Received:
January 29, 2014
Citation
Khanam, S., Dutt, J. K., and Tandon, N. (April 1, 2014). "Extracting Rolling Element Bearing Faults From Noisy Vibration Signal Using Kalman Filter." ASME. J. Vib. Acoust. June 2014; 136(3): 031008. https://doi.org/10.1115/1.4026946
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