What is modal identification?

Modal identification is a process that constructs a numerical model of the monitored system using a set of vibration responses. The healthy state of the given system can be estimated and a monitoring plan can be established based on the information collected in terms of modal parameters.

 

How does it look like?

 

 

Why use Structural Modal Identification Toolsuite (SMIT)?

Use SMIT if you want to…

• Plot a stabilization diagram

• Inspect mode shapes and phase angle for each node

• Estimate natural frequency and damping ratio

• Display Power Spectral Density (PSD) of output response

 

SMIT allows users to…

• Choose between Input/Output and Output-Only systems

• Customize structural geometries

• Compare results from several identification methods

• Apply various filtering methods (or no filtering at all)

• Designate the model order specification of the Hankel matrix

• Limit bounds for frequency, damping ratio, and MAC

• Select which mode shapes they wish to view

 

SMIT is different from other system identification programs because it…

• Accommodates both Input/Output and Output-Only systems

• Comes with a user-friendly interface

• Requires less computer memory and time to run than similar programs