Blind Separation Method for Gearbox Mixed Fault Signals
Yan Bin Lei, Zhi Gang Chen, Hai Ou Liu · Applied Mechanics and Materials · 2011
A new blind source separation (BSS) algorithm used for separating mixed gearbox signals is proposed in this paper. Firstly, whiten the observed signals, and then diagonalize the second- and higher-order cumulant matrix to get an orthogonal separation matrix. The feasibility of the algorithm is validated through separating the mechanical simulation signals and the gearbox vibration signals. The algorithm can successfully identified the failure source of the gearbox and provides a new method to a gearbox fault.