Fault Detection and Behavior Analysis of Wheelset Bearing Using Adaptive Convolutional Sparse Coding Technique Combined with Bandwidth Optimization
Figure 27
UC-DLA with parameters for identification of wheelset bearing outer race fault. (a) Sparse reconstruction signal; (b) locally zoomed figure of the impulses shown in Figure 27(a); (c) learned shock responses; and (d) envelope spectrum of signal in Figure 27(a).
