Dynamic Modelling of Planetary Gearboxes with Cracked Tooth Using Vibrational Analysis

Manarikkal, Imthiyas; Elasha, Faris; Laila, Dina Shona; David, Éric

doi:10.1007/978-3-030-11220-2_25

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Through their research, they were able to study the nonlinear dynamic characteristics of gear sets and identify the influences of multiple factors, including dimensionless backlash, meshing stiffness, and error excitation amplitude, on frequency-response characteristics. Cui et al [12][13][14] developed a coupled nonlinear dynamic model for compound planetary gears. This model was utilized to extract the natural frequency of the system and to evaluate the influences of moment of inertia, meshing stiffness, and other pertinent factors on its vibration response.…”

Section: Introductionmentioning

confidence: 99%

Study on Dynamic Coupling Behavior of End-Meshing Harmonic Reducers

Liu,

Wen,

Chen

2024

Mathematics

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To study the coupling mechanism and dynamic responses of an end-face-movable gear transmission system under complex excitation, a specific configuration of end-meshing, movable-gear reduction mechanism was used to achieve predetermined rigid-thrust-transmission and mismatched-gear-meshing functions, which solved the inherent defects of traditional harmonic gear mechanisms of thin-wall-flexible wheels that are easily damaged by fatigue. Considering the phenomenon of elastic deformation of live teeth that is accompanied by significant changes in meshing characteristics in the transmission process of an end-meshing harmonic reducer, the influences of dynamic meshing parameters, live tooth deformation, time-varying stiffness of tooth meshing, and time-varying backlash on nonlinear dynamic performance were explored, as well as the mechanisms of multi-parameter coupling effects on transmission performance. The nonlinear dynamics model of the end-meshing harmonic reducer was established to solve the chattering prediction problem. Finally, a comprehensive test bed for the transmission system of a harmonic reducer with a meshing type with an adjustable-characteristic end was built to verify the correctness of the theoretical model and provide the theoretical and technical basis for exploring the optimal parameter selection to address the passive vibration-suppression problem.

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Section: Introductionmentioning

confidence: 99%

Study on Dynamic Coupling Behavior of End-Meshing Harmonic Reducers

Liu,

Wen,

Chen

2024

Mathematics

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“…The study considered non-linear gear mesh deformation, and the results showed that the time-varying pressure angle and contact ratio causes more frequency components in the spectrum than the constant pressure angle and contact ratio case. The dynamic modelling of a planetary gearbox using Newtonian equations of motion for studying the resonance and Modal properties was investigated in [19]. The model was developed using the lumped parametric method and the solved eigenvalues problem to study the resonant frequencies.…”

Section: Introductionmentioning

confidence: 99%