Research on spectrum components of planetary gearbox vibration signals by dynamic modelling and filtering


Understanding of planetary gearbox vibration spectrum components is helpful for researchers and engineers to develop fault diagnosis methods, however, few literatures has focus on comprehensive explanation of planetary gearbox vibration signal, there is a lack of knowledge on fully understanding of planetary gearbox vibration signal spectrum. To address this problem, a dynamic model of a planetary gearbox is established, signal of gearbox under different health state are simulated, simulation signal is processed to investigate spectrum components of planetary gear vibration signal; experiments are conducted to collect gearbox vibration signal to validate spectrum components analysis result from dynamic model simulation.