Force Coupling Element
Gear mesh excitation is the central excitation source in drive trains with gearboxes. The interaction of the drive train dynamics with this excitation can lead to strongly increasing loads and noise in the case of resonance phenomena. Therefore, it is important to be able to calculate the dynamic excitation behavior in an early design step.
The developed simulation model is intended to provide the user with a method for determining the dynamically effective forces in gear mesh. These dynamic excitation forces can then be used to take into account and optimize the dynamic behavior of gears in the drive train.
The simulation model consists of two parts: the dynamic drive train model and the force coupling element. The force coupling element uses excitation maps, which are determined with the FE-based tooth contact analysis STIRAK. To this end, the tooth flank geometry is taken into account by means of measured topographies, manufacturing simulations or analytical descriptions. On this basis, the determination of the load distribution and the excitation behavior of the gears is carried out by means of the highly accurate FE-based tooth contact analysis. The results are incorporated into the dynamic simulation of a drive train system using the force coupling element. Here, the loads and the drive train excitation due to the dynamically occurring gear forces are calculated. For this purpose, the entire drive train can be regarded as a multi-body simulation model.
Marius Schroers, M.Sc.
Tel.: +49 241 80-27731
Fax: +49 241 80-22293