The influence of time-varying mesh stiffness on natural characteristics of planetary gear system

Abstract Modal property is the crucial factor that can influence vibration characteristics of planetary gear system. Previous studies used time invariant mesh stiffness (TIMS) to study natural characteristics. However, with rotation gear, meshing will change periodically which lead changes modal properties. Based on these properties are ignored in previous studies, a translational-torsional free model base time-varying (TVMS) rather than established this paper system, effects TVMS investigated. The results show phase difference and regulation varying frequencies correlated, there dramatic variation higher order at contact teeth points. Furthermore, useful conclusion be drawn takes calculate has certain advantages over traditional methods.