Vibration characteristics analysis of the new pin-cycloid speed reducer

Chen, Zhongmin; Ou, Yongsheng; Liu, Siyuan; Wen-hua, Peng; Yang, Zhongxue

doi:10.1007/s40430-018-1011-1

Cited by 10 publications

(4 citation statements)

References 16 publications

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“…They studied the variation in system vibration response with compression and damping coefficient changes, along with the bifurcation characteristics. Chen et al [51] developed a nonlinear dynamic model for a novel cycloidal reducer with flexible structures, analyzing the impact of flexible structures on the vibration response and nonlinear dynamic characteristics of the system.…”

Section: Introductionmentioning

confidence: 99%

Study on Nonlinear Dynamic Characteristics of RV Reducer Transmission System

Han,

Wang,

et al. 2024

Energies

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Rotate vector (RV) reducers have widely been used in high-performance precision drives for industrial robots. However, the current nonlinear dynamic studies on RV reducers are not extensive and require a deeper focus. To bridge this gap, a translational–torsional nonlinear dynamic model for an RV reducer transmission system is proposed. The gear backlash, time-varying mesh stiffness, and comprehensive meshing errors are taken into account in the model. The dimensionless vibration differential equations of the system were derived and solved numerically. By means of bifurcation diagrams, phase trajectories, Poincaré sections, and the power spectrum, the motion state of the system was studied with the bifurcation parameters’ variation, including excitation frequency and meshing damping. The results demonstrate that this system presents enriched nonlinear dynamic characteristics under different parameter combinations. The motion state of the system is more susceptible to change at lower frequencies. Increasing the meshing damping coefficient proves effective in suppressing the occurrence of chaos and reducing vibration amplitudes, significantly enhancing the stability of the transmission system.

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Section: Introductionmentioning

confidence: 99%

Study on Nonlinear Dynamic Characteristics of RV Reducer Transmission System

Han,

Wang,

et al. 2024

Energies

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“…Jang et al 6 introduced a new cycloidal pin gear reducer, where the transmission teeth of different heights and thicknesses can be designed. Chen et al 7 designed a cycloidal reducer with a flexible structure and analyzed the influence of design parameters on its vibration. The application of mathematical modeling and finite element method (FEM) in the meshing theory has contributed greatly to the development of new reducers.…”

Section: Introductionmentioning

confidence: 99%

Geometric design and dynamic characteristics of a novel abnormal cycloidal gear reducer

Gong

Luo

et al. 2023

Advances in Mechanical Engineering

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A precision reducer with a high ratio and a small size is essential for precise control of the position of a robotic arm. The rotate vector (RV) is a reducer widely applied in robotic joints. However, its complex structure, over-positioning and difficult assembly restrict its application industrial robots. Herein, a novel abnormal cycloidal gear (ACG) reducer is proposed. In comparison to the RV reducer, the proposed reducer has the characteristics of compact structure, less over-positioning and high ratio. The compound tooth profile of “epicycloid-involute hypocycloid” is used as the driving teeth for improving the performance of the reducer. The operating principle, mechanism design and reduction ratio of the proposed reducer is investigated, and the design method of the ACG tooth profile is also introduced. A dynamic characteristic model is established to verify the correctness of the design method of the reducer. A prototype of the ACG reducer is fabricated by using the computer numerical control (CNC) machining technology. Results show that the ACG reducer is capable to cover a wide range of reduction ratios with a simple mechanism. The numerical and theoretical results are in agreement, which depict the structural feasibility and correctness of the design method of the reducer. The adaptation of the ACG tooth profile as the driving teeth helps in improving the performance of the reducer.

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“…The results show that the non-linear meshing stiffness is a main dynamic excitation of the prototype vibration. Yang et al [5] analysed the influence of the meshing clearance on the transmission performance when the node position changing during the transmission of the cycloidal pin wheel of the RV reducer; Chen et al [6] investigated the vibration characteristics of the cycloidal pinion planetary reducer transmission system, and established the multi-factor coupling dynamics model and the vibration differential equations of the new cycloidal pinwheel planetary reducer. The results show that the vibration damping pad can reduce the vertical vibration and torsional vibration of the cycloidal wheel and the low speed shaft.…”

Section: Introductionmentioning

confidence: 99%