DATS is the leading software packages for the capture, analysis and reporting of engineering data. It includes time and frequency domain analyses as well as special solution packs to address specific applications
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The DATS Modal Analysis suite is provided for analysts who want to determine Modal Frequencies, Damping Factors & Modal Amplitudes from either measured frequency response functions, impulse response functions or from response-only data. A variety of frequency and time domain identification methods are provided for the extraction of these parameters. These include Half-Power methods, SDOF, MSDOF, MDOF and ERA-DC. The identified mode shapes can be displayed and animated using the DATS Structural Animation package. A synthesis module is provided to enable Frequency Response Functions (FRF) to be regenerated from the identified parameters thereby revealing the accuracy of the modal model fitting. Forced responses can also be predicted by convolution of the regenerated FRFs with either simulated or known force inputs.
Parametric identification of
• Modal Frequencies
• Damping Factors
• Modal Amplitudes
Frequency and Time Domain Methods
• Half-power estimates
• SDOF, MSDOF, MDOF
• ERA-DC
OMA Methods
FSDD (Frequency)
ERA-DC (Time)
FRF synthesis from Modal Parameters
