Extend Your Reach – Signal Processing in Abaqus

Do you need to visualize signals in time and frequency domains and perform other signal processing techniques?  SPA, or Signal Processing for Abaqus by Critical Materials can help you analyze dynamic signals right in the Abaqus environment.

SPA is a signal processing solution developed, specifically, for Abaqus users, capable of executing the most important signal processing operations with a high degree of user interaction and flexibility. SPA uses a simple "one element/node-one sensor" integrated approach delivering increased efficiency and quality of signal processing operations, The result is in-depth analysis of dynamic signals in a fully embedded Abaqus environment. Additionally, utilizing the data import tools, SPA is capable of treating external data, allowing, for example, simulation/experimental correlation studies and other statistical analyses.  

The SPA intuitive graphical interface is available directly within Abaqus/Viewer and does not require any external software packages, leveraging standard Abaqus installation procedures and numerical modules.

Critical Materials has assembled some videos to help better understand SPA.  Check them out on YouTube!

Critical Materials – SPA and Company Overview

This overview of SPA highlights its main features, product advantages, capabilities, and target markets.  It also includes a brief product demonstration.

SPA – Signal processing for Abaqus (Lamb waves propagation)

In this video, SPA performs a time to frequency (and inverse) transformation for a tone burst loading induced by a piezoelectric actuator. The deformation of the piezoelectric actuator induces elastic Lamb waves that propagated throughout the structure. For this example, the carrier frequency of the tone burst was set to 15kHz which is highlightedafter the FFT procedure applied through SPA.

SPA – Signal processing for Abaqus (Oberst bar)

SPA was used to compute a transfer function (compliance) for a cantileverbeam, with a transient load (hammer impact) applied near the beam’s root. In sequence, modal damping is calculated from the obtained compliance transfer function.

SPA-Signal Processing for Abaqus (Wind Blade)

In this example, SPA computes the temporal response of a wind blade, having as input, data retrieved from a frequency-response (steady-state) based simulation  In sequence, MAC-Modal Assurance Criteria is obtained through comparison of simulation and external data.