Gearbox loads caused by double contact simulated with HAWC2

The aim of the work is to investigate if a special event named "double contact“ or “tooth wedging” between individual gear wheels inside a gearbox can cause high internal transient loads and lead to gearbox failure. The investigation is made by interfacing a non-linear simulation model of the dynamic behaviour of a gearbox to the aeroelastic code HAWC2. The response of the coupled simulation models are then analyzed in order to see if and under which circumstances the double contact event occurs and which loads are achieved inside the gearbox, caused by the radial force reactions.