This is a complete example of finite element model verification and calibration (sometimes known as correlation).
The example uses a finite element model built in the free CALFEM toolbox and experimental modal analysis results of the Plexiglas plate used throughout ABRAVIBE as an example structure. The idea of this example is to be simple and illustrative, so that the techniques are not hidden by practical difficulties. The example includes verification of mode shapes using the MAC matrix and frequency tables, and calibration by adjusting the Young’s modulus to adjust the first bending mode of the FE model to fit the experimental data. You can download a paper from Sound and Vibration describing the example.
You need to be logged in to view the rest of the content. Please Log In
. Not a Member? Join Us
Convolution is an extremely important mathematical concept if one wants to understand linear systems, or, for that matter, frequency analysis. Convolution is also, however, often a concept that many students have some difficulty grasping. Therefore, I have made this short demonstration video that I hope will clarify the concept for your. Please share this if you think it is good!
If you are an old visitor, you will notice that my website has changed. I have finally moved to WordPress. As a result, I am afraid that you will have to register again. Sorry for the inconvenience.
Another news is that there are now two member levels: you can either be a free member, or a paying member. The payment is small, and one time, and totally optional! But if you find this site useful, please consider paying the $5.00 to ensure the site can be maintained. I do this in my spare time and for my own money! You can also donate whatever amount, for which I will be equally grateful.
I hope that you will get a lot of use of this site, just as the old. Almost 5,000 people signed up to the old site, which I am very happy about.
All the best