期刊
MACHINES
卷 11, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/machines11060610
关键词
phase-coupled tuning; multistage planetary gear; nonlinear dynamics; coupled vibration
This research investigates the coupled phase-tuning mechanism of two-stage planetary gear systems and its relationship with the coupled vibration of the system. It derives the phase-coupled tuning mechanism of the two-stage planetary system based on meshing force relationships and coupling characteristics between different stages. The excitation and suppression relationships associated with the teeth number, harmonic order, and coupling vibration of the coupled system are clearly described. A nonlinear dynamic model is used to study the effect of coupled phase tuning on the vibration response of a two-stage planetary gear system. The correctness of the phase-coupling tuning law is further verified through experimental analysis.
Mesh phasing has a dramatic impact on the static and dynamic behaviours of planetary gear systems. This research investigates the coupled phase-tuning mechanism of two-stage planetary gear systems and the corresponding relationship with the coupled vibration of the system. Due to the inherent meshing symmetry of the system, the phase-coupled tuning mechanism of the two-stage planetary system is derived based on meshing force relationships and coupling characteristics between different stages. The excitation and suppression relationships associated with the teeth number, harmonic order, and coupling vibration of the coupled system are clearly described. To study the effect of coupled phase tuning on the vibration response of a two-stage planetary gear system, a nonlinear dynamic model was established. The vibration responses under different tuning modes were calculated, and a coupled phase-tuning law for two-stage planetary systems was verified. Model 3 was used as a research tool to build a two-stage planetary transmission experimental platform, and the transverse vibration and torsional vibration of the first stage sun gear were analysed to further verify the correctness of the phase-coupling tuning law.
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