FlexPro Order Tracking Option
Introduction
Using this analysis object you can carry out an order tracking for speed-dependant oscillations.
During order tracking the oscillation signals measured at a certain speed are subjected to a Fourier-transformation (FFT). From the spectrum individual spectral lines are taken of which the frequency corresponds to a multiple of the base frequency determined by the speed.
Order Tracking from FlexPro can process data in different data structures. You can either enter multiple individual signals that are measured at certain revolutions or one ascending signal and the synchronically measured speed signal. FlexPro can analyse time and angle signals. The speed signal can also be interpreted as an impulse signal.
The result of the order tracking is a 3D-data set with the
amplitude across the order and frequency or speed, respectively. With
the Splitted Orders Analysis Object, you can divide the result into
several 2D-data sets, one for each order. You can use the Family of
Acceleration Hyperbolae Analysis Object to compute a 3D-data set of
acceleration hyperbolae to be displayed in the result diagram for the
order tracking.
Features
- Source data may be sampled time-based or angle-based.
- The factor to transform time into RMS can be specified.
- The speed signal can be specified as an impulse signal.
- When analysing individual measurements, the associated speeds can be specified directly or computed from additional signals by averaging.
- Adjustable FFT-length.
- FFT spectra amplitude, RMS, RMSē, energy density, complex, real part, imaginary part, phase.
- Taper windows rectangular, Hamming, Hanning, Bartlett, Kaiser-Bessel, Flattop, Blackman, cosine, Welch, Connes.
- Adjustable band with for detecting the orders.
- The list of orders to be analysed can be specified or obtained from a separate data set.
- Order, speed and frequency can be freely assigned to the X and Z components of the result data set. An external data set can be specified as the source for the X component.
- Splitting of 3D-result into individual orders.
- Computing of a 3D data set to display a set of acceleration hyperbolae.