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Vibration Analysis

Order and frequency maps, order tracking, order spectra, frequency-response functions, modal analysis

Signal Processing Toolbox™ provides functions that let you study and characterize vibrations in mechanical systems. Use order analysis to analyze and visualize spectral content occurring in rotating machinery. Track and extract orders and their time-domain waveforms. Estimate the average spectrum of a signal as a function of order. Perform experimental modal analysis by estimating frequency-response functions, natural frequencies, damping ratios, and mode shapes. Plot stabilization diagrams.

Functions

orderspectrum Average spectrum versus order for vibration signal
ordertrack Track and extract order magnitudes from vibration signal
orderwaveform Extract time-domain order waveforms from vibration signal
rpmfreqmap Frequency-RPM map for order analysis
rpmordermap Order-RPM map for order analysis
tachorpm Extract RPM signal from tachometer pulses
modalfit Modal parameters from frequency-response functions
modalfrf Frequency-response functions for modal analysis
modalsd Generate stabilization diagram for modal analysis

Topics

Order Analysis of a Vibration Signal

Analyze vibrations in rotating machinery using order analysis.

Modal Analysis of a Simulated System and a Wind Turbine Blade

Estimate frequency-response functions and modal parameters from experimental data.

Featured Examples

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