WHERE CAN TOR­SION­AL VIBRA­TIONS BECOME CRIT­I­CAL IN THE E‑POWERTRAIN?

Preview Case Study

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!

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WHERE CAN TORSIONAL VIBRATIONS
BECOME CRITICAL AND CAUSE NOISE IN THE E-POWERTRAIN?

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