Abstract
Blind source separation (BBS) technology was applied to vibration signal processing of gearbox for separating different fault vibration sources and enhancing fault information. An improved BSS algorithm based on particle swarm optimization (PSO) was proposed. It can change the traditional fault-enhancing thought based on de-noising. And it can also solve the practical difficult problem of fault location and low fault diagnosis rate in early stage. It was applied to the vibration signal of gearbox under three working states. The result proves that the BSS greatly enhances fault information and supplies technological method for diagnosis of weak fault.
Original language | English |
---|---|
Pages (from-to) | 409-415 |
Number of pages | 7 |
Journal | Journal of Central South University of Technology (English Edition) |
Volume | 15 |
Issue number | SUPPL. 2 |
DOIs | |
Publication status | Published - Dec 2008 |
Keywords
- Fault diagnosis
- Fault information enhancement
- Gearbox
- PSO blind source separation