By Topic

Design of an impulse wavelet for structural defect identification

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Ruqiang Yan ; Sch. of Instrum. Sci. & Eng., Southeast Univ., Nanjing, China ; Gao, R.X.

This paper presents the design of an impulse wavelet for structural defect diagnosis. Specifically, the impulse response measured on a rolling bearing has been used as the basis to formulate a scaling function that satisfies the dilation equation, which is generally provided in standard base wavelets. The scaling function is subsequently used to construct a base wavelet (i.e., an impulse wavelet) for analyzing vibration signals measured on the bearing. Because of the inherent association of the impulse wavelet with the bearing being monitored, it is shown to provide a physically more meaningful method for extracting defect-induced impulsive features embedded in the bearing vibration signals than some of the standard wavelets reported in the literature. Evaluation using sensor data obtained on an experimental test bed confirmed the conclusion.

Published in:

Prognostics and Health Management Conference, 2010. PHM '10.

Date of Conference:

12-14 Jan. 2010