Forced vibrations of gearboxes with time dependent meshing stiffnesses

The contribution presents the efficient method of the mathematical modelling of gearboxes with time dependent meshing stiffnesses. A gearbox is considered including a housing and an interior rotating shaft system with gears. Further the paper deals with an analysis of vibrations excited by the important sources of the internal excitation in gear meshing. The theory is applied to a simple test-gearbox.