… In this paper, some non-linear diagnostic methods for rotating machinery are introduced
and evaluated from the view of diagnostic practice. The methods are pseudo-phase portrait, …

… to extract the time-varying features contained in nonstationary signals [5], [6]. Feng provided
a comprehensive review for the TFA technique in the fault diagnosis of rotating machinery, …

… Engineers have investigated the occurrence and impact of faults for a long time, due to
their potential to cause substantial damage to machinery and risk for human health or life. …

… a new non-linear operator called the Teager Energy Operator, has been introduced. This
operator is interesting because it has a small time window, making it ideal for local (time) …

… fault diagnosis problem of rotating machinery under a speed-varying condition was researched.
Due to the influences of non-linear factors in a non-linear … suitable for fault diagnosis. In …

… This paper explores the improved time-scale representation by considering the non-linear …
rotating machine faults in the time-scale domain. A new time-scale signature, called time-…

… through taking into account non-linear behavior of time series [7], [13]–[17]. Recently,
entropy-based method has been widely applied in the fault diagnosis of rotating machinery [17]–[21…

… be applied to rotating machinery operating under non-linear and non-stationary … equipment
[3], [4], [5], [6], [7]. The advent of online CM systems (CMSs) that integrate with fault detection …

… non-linear relationship of the signal and dictionary weights. The algorithm can be used in the
various condition-based monitoring of rotating machineries … failure of rotating machinery is …

… fault estimation approach for a class of non-linear systems is proposed, which can be
efficiently applied to realize the fault diagnosis three-step procedure within a unified framework. …