Parameterised time-frequency analysis methods and their engineering applications: A review of recent advances
It is well known that time-frequency analysis (TFA) characterises signals in time-frequency
plane. Theoretically, traditional non-parameterised TFA can analyze any signal, but it is …
plane. Theoretically, traditional non-parameterised TFA can analyze any signal, but it is …
Basic research on machinery fault diagnostics: Past, present, and future trends
Machinery fault diagnosis has progressed over the past decades with the evolution of
machineries in terms of complexity and scale. High-value machineries require condition …
machineries in terms of complexity and scale. High-value machineries require condition …
Matching synchrosqueezing transform: A useful tool for characterizing signals with fast varying instantaneous frequency and application to machine fault diagnosis
Synchrosqueezing transform (SST) can effectively improve the readability of the time-
frequency (TF) representation (TFR) of nonstationary signals composed of multiple …
frequency (TF) representation (TFR) of nonstationary signals composed of multiple …
Detection of rub-impact fault for rotor-stator systems: A novel method based on adaptive chirp mode decomposition
For rotating machineries, rub-impact between the surfaces of the rotor and the stator during
the rotation is a common and severe fault. The rub-impact fault will lead to a frequency …
the rotation is a common and severe fault. The rub-impact fault will lead to a frequency …
Early fault detection of single-point rub in gas turbines with accelerometers on the casing based on continuous wavelet transform
A Silva, A Zarzo, JMM González… - Journal of sound and …, 2020 - Elsevier
The diagnosis of rotor-casing rub, one of the most common malfunctions in rotating
machinery, is usually straightforward in machines equipped with proximitors measuring …
machinery, is usually straightforward in machines equipped with proximitors measuring …
Sparsity-enhanced signal decomposition via generalized minimax-concave penalty for gearbox fault diagnosis
Vibration signals arising from faulty gearboxes are often a mixture of the meshing
component and the periodic transient component, and simultaneously contaminated by …
component and the periodic transient component, and simultaneously contaminated by …
Identification of rotor-stator rub and dependence of dry whip boundary on rotor parameters
Rotor rub is one of the most critical and catastrophic event that occurs in gas turbine aircraft
engines and other rotating machineries. Rotor rubbing introduces non-linearity in the system …
engines and other rotating machineries. Rotor rubbing introduces non-linearity in the system …
Reassignment-enable reweighted sparse time-frequency analysis for sparsity-assisted aeroengine rub-impact fault diagnosis
Time-frequency analysis (TFA) is an effective tool for the feature extraction of nonstationary
signals. However, the energy concentration of the TF representation (TFR) obtained by …
signals. However, the energy concentration of the TF representation (TFR) obtained by …
General synchroextracting chirplet transform: Application to the rotor rub-impact fault diagnosis
Z Meng, M Lv, Z Liu, F Fan - Measurement, 2021 - Elsevier
The rub-impact fault between the rotor and the stator surface is a common and serious
failure in rotating machinery. The vibration signals acquired during the rotating machinery …
failure in rotating machinery. The vibration signals acquired during the rotating machinery …
Ridge-aware weighted sparse time-frequency representation
The ideal time-frequency (TF) representation which distributes the total energy along the
instantaneous frequency (IF) of a signal is essentially sparse. Motivated by the weighted …
instantaneous frequency (IF) of a signal is essentially sparse. Motivated by the weighted …