The switch to electromobility is picking up speed. There are already 10.9 million e-cars on the road worldwide (2020) and this number will rise to 34 million by 2030 (Ceresana forecast). In the development of e-drive trains, the focus is on electric storage capacity, weight and size of the traction machine, durable powertrain components, ride comfort and thus quiet driving. Standard NVH analysis systems use airborne and structure-borne sound signals to study the generated noise, vibration, and their transmission paths, but usually ignore the mechanism of how these effects are generated.

How can noise excitation be better studied, where can torsional vibrations become critical as well as dynamic loads, and what parameters should be collected?

The following case study addresses these questions in detail and presents solutions. Download now!