Nonlinear Torsional Stiffness Analysis of Harmonic Drives Using Flexible Multibody Dynamics Simulation

Lee, Joonho; Han, Seok Hee; Sohn, Jonghyeon; Han, Byung-Kil; Lee, Joo-Hong; Park, Dong Il; Kim, Jin-Gyun

doi:10.1109/tmech.2022.3199808

Cited by 4 publications

(3 citation statements)

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“…It is assumed that the left end of each microelement 𝑖 is fixed, and that the portion connected to the right end of the microelement is regarded as a rigid body. The amounts of compression deformation, shear deformation, and bending deformation of the microelement can be obtained using Equation (5).…”

Section: Analysis Of Meshing Stiffness Between Circular Spline and Os...mentioning

confidence: 99%

“…Scholars [4][5][6][7][8][9][10] have established a nonlinear dynamic model of planetary gear sets based on considerations of the interaction of factors such as time-varying mesh stiffness and gear backlash. The influences of internal and external excitation on vibration and impact behavior was revealed, and measures to reduce vibration and impact were proposed.…”

Section: Introductionmentioning

confidence: 99%

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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: Analysis Of Meshing Stiffness Between Circular Spline and Os...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on Dynamic Coupling Behavior of End-Meshing Harmonic Reducers

Liu,

Wen,

Chen

2024

Mathematics

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show abstract

“…Computer simulation of mechatronic systems, such as heavy machinery [1], can be accomplished using various methods depending on required accuracy and computational burden. Multibody dynamics [2] is one such method that is extensively reported in the literature [3,4]. It can deliver high accuracy with low computational burden as compared to finite element based methods [5] due to the reduced number of degree of freedom in the system [6].…”

Section: Introductionmentioning

confidence: 99%