RogaANA - Modal Analysis
To perform a modal analysis for a structure transfer functionsretrieved from a measurement are needed which are generated by the RogaANA
Signal analysis module. Modal values like modal vector, modal frequency and attenuation are determined offline with RogaANA Modal
Analysis. It allows importing transfer functions and geometric data.Measurement data Source: Online operationRogaANA Signal Analysis
Offline Operation
Project management Starting a new project or loading an existing one
Setup graphicsMask design
Shape editorDefining structures with lines, grids, planes Modal Value Analysis Selection of resonances in transfer functions or tagging of frequency intervals within transfer functions
Automatically determined modal values
Manual approximation of the fit curve to measured transfer function
Presentation: Modal shape is animated for a certain modal frequency
Important: Animation frequency and modal frequency are not identical ! Source: Offline operationImport of UFF format
Online Operation of RogaANA Signal Analysis
Data acquisition Triggered averaged measurement
Filter design
Calibration module
Comparator module
RMS or peak setting Operation Deflection Shapes The detection of deflection shapes associated to modal frequencies within the transfer function a spectral line is selected
Presentation : Deflection shape is animated with the frequency of the spectral line in question
Important: Animation frequency and frequency of spectral line are not identical! Functions Time response, FFT spectrum, magnitude
Automatic and cross power spectrum
Automatic and cross power density spectrum
Transfer function, coherency function Presentation 1 to 16 diagrams for each screen mask
1 to 16 graphs for each diagram (overlay)
Amplitude, linear, logarithmic, dB
X and Y axisMaximum, automatic or manual scalingSetting the decimal placesTime responseAmplitude (linear)
SpectraScalar value, phase, real and imaginary part, spherical diagramType of cursor Line, cross, cross
Cursor outputAmplitude, time, frequency Operators Integral single and double, differentiation single and double Archiving Single measurement on data storage mediaTransfer functions in modal databaseImport from UFF file
Export to UFF files, MScope, DIAdem, FAMOS
Export to WAV file
Export to ASCII file for import to MS Excel Output Printing module : Design of framing, head / foot note lines. Integration of captions, photographs and company logos. Setup Storing and loading of measurement cards and graphical setups