Dynamic Modelling and Simulation of Cracked Straight Tooth Cylindrical Gears
In order to study the vibration characteristics of a two-stage gear system with cracked gears,a multi-body dynamic model of a two-stage gear system with cracked gears is established using virtual proto-type technology based on the ADAMS analysis software,and a flexible support is used to replace the ideal ro-tational constraints,so that a full rigid-body model and a full flexible-body model are established to study the dynamic response of the model under the same working conditions,and to analyze the influence of the flexi-ble shaft and flexible teeth on the vibration characteristics of the gear system with cracked gear teeth.Using the flexible support to replace the ideal rotation constraints,the fully rigid body model and the fully flexible body model are respectively established to study the dynamic response of the model under the same working conditions,and to analyze the influence of the flexible shaft and the flexible teeth on the vibration characteris-tics of the gear transmission system containing cracked gear teeth;a multi-body dynamics model is established for the healthy gear transmission system,and the results of the healthy model are analyzed in comparison with the results of the faulty multi-body dynamics model,to explore the influence of the crack on the results.This study can obtain accurate vibration characteristics of gear trains containing cracks and verify the feasibility of analyzing gear trains containing crack faults by using flexible supports at the gearbox bearings.
万方数据
维普
