Bump Test with Motion Amplification Camera
In general we perform bump/impact test to find natural frequency as rough test to prove if resonance problem exists. But however if we would like to see mode shape, several measurement points of transfer function/frequency response function between input force and vibration output is required. Modal analysis software is then used to curve fit the data and identify natural frequency, mode shape, and damping. Motion amplification (MA) camera is a modern tool which is normally