Research Article
Separation Method of Impulsive Fault Component for Gasoline Engine Based on Acoustic Signal Analysis
Figure 7
Influence of the relationship between and di on fault components. (a) di > . (b) di = . (c) ≤ di < . (d) di < . If di ≥ , then the main energy area of the fault components will be destroyed or skipped, as shown in Figures 7(a) and 7(b). If ≤ di < , then the main energy area is also destroyed, as shown in Figure 7(c). If di < , then the main energy area is hardly destroyed.
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| (b) |
| (c) |
| (d) |