Lightweight vehicles benefit from a test based damping material placement. Only critical surfaces with a high contribution to the interior sound receive treatment with dampling material layers.
Scanning Vibrometry delivers quatitative data with high spatial resolution resolving hotspots in footpan, firewall or transmission tunnel. This surface velocity data is used to guide direcly placement stategies or as an input for acoustic simulation.
The benefit of a test based strategy is up to 40% weight reduction in critical areas.
Read more in the January 2014 issue of the Sound & Vibration Magazin