Modal Analysis: Case Study

This lecture covers the importance of modal analysis in motion and vibration measurements, focusing on techniques to find mode shapes and resonance frequencies to prevent undesirable behaviors in mechanical systems. It also includes examples of mode shapes in a snowboard and a plate, as well as the concept of Frequency Response Function (FRF) and Dynamical Models. The lecture explains Single Mode response functions, Amplitude/Phase measurements, Real/Imaginary representations, and Modal Shapes. The procedure for conducting modal analysis is detailed, emphasizing the proper mounting of the Device Under Test (DUT), data acquisition parameters selection, and the use of FRF analysis to identify resonance frequencies and mode shapes.