E.D.S. Munck

TL;DR: In this article, the authors examined which factors and assumptions, inherent in this computed order tracking method, have the greatest effect on its accuracy and found that the method is extremely sensitive to the timing accuracy of the keyphasor pulses and that great improvements in the spectral accuracy were observed when making use of higher-order interpolation functions.

TL;DR: In this paper, a tutorial on cyclostationarity oriented towards mechanical applications is presented, with 20 examples devoted to illustrating key concepts on actual mechanical signals and demonstrating how cyclostatarity can be taken advantage of in machine diagnostics, identification of mechanical systems and separation of mechanical sources.

TL;DR: In this article, it is shown that vibration signals exhibit cyclostationarity if and only if the random speed fluctuation of the machine is periodic, stationary or cyclostatary.

TL;DR: A systemic and pertinent state-of-art review on WT planetary gearbox condition monitoring techniques on the topics of fundamental analysis, signal processing, feature extraction, and fault detection is provided.

TL;DR: In this article, the authors propose a method to resample the signal against the angle by using the acceleration signal of a gearbox, where the gear tooth pairs produce contact shocks during rotation and these shocks are processed in order to retrieve the position of the gear against the time.

TL;DR: In this article, a sensorless algorithm was proposed for angular resampling of the acceleration signal of a gearbox submitted to limited speed fluctuation. But it requires only the knowledge of an approximate value of the running speed and the number of teeth of the gears.