Model of the planetary gear based on multi-body method and its comparison with experiment on the basis of gear meshing frequency and sidebands

Abstract

Model tests can be used as a source of information about gearbox dynamics. Simulation of phenomena occurring in gearboxes allows to identify vibration signatures related to other failures of gears, bearings and shafts. In the chapter, the rigid-elastic model of the planetary gear is presented. The model was developed on the basis of the multi-body dynamics method. To conduct dynamic simulations specialized softwareMSCADAMSwas used. Themulti-body method merges advantages ofCADmodeling and efficient numerical simulations.Developed model allows to simulate the transmission error generated by a gearbox and forces in planet-sun and planet-ring meshing. In the tests it was observed that phase relations between meshing process influence on the sidebands of meshing frequency harmonics. The model was compared with experimental data on the basis of gears’ meshing frequencies and modulation sidebands.