Vibration response of a brake disc

See how a complex part responds, feature by feature. In this brake-disc study, Q2 connects optical geometry with 2,804 measured vibration locations and response analysis from 200 Hz to 4 kHz.

The ring, spokes and central assembly can be examined in one spatial view. Q2 combines optical ranging and laser vibrometry to place each recorded response in the context of the component. Here, the geometry comes from an optical depth survey and photographs, without an imported CAD file.

Q2 records 45 optical velocity channels at the same time. Some minutes of parallel recording already contain many local time histories; automated positioning extends that coverage across the component.

The case analyses the response from 200 Hz to 4 kHz. Six selected spatial patterns show how magnitude and phase change across the disc, with the highest illustrated pattern at 3678 Hz. The response curve and maps connect frequency behaviour to physical features.

Watch the six measured response patterns in the 24-second video. Motion is slowed and amplified separately at each frequency so the changes in spatial behaviour are easy to follow.

A dense measured view helps engineers locate response concentrations, follow how neighbouring features move and compare the observed behaviour with structural models. This brake-disc study shows how Q2 links complex geometry with real vibration data across the 200 Hz to 4 kHz analysis band. It gives teams a concrete basis for model correlation, focused investigation and planning the next measurement.