Nonlinear Dynamics Analysis of a Multistage Planetary Gear Transmission System

Liu, Suixian; Hu, Aijun; Zhang, Yue; Xiang, Ling

doi:10.1142/s0218127422500961

Cited by 12 publications

(4 citation statements)

References 17 publications

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“…In the multi-rigid-body analysis, since each component in the model is rigid, the elastic deformation of the component is ignored, and the dynamic stress of the component cannot be obtained from the analysis results. To reflect the dynamic characteristics of the gear more truly, the elastic deformation of the gear must be considered to establish a flexible gear that can reflect the elastic deformation [17][18]. When the modal flexibility (RFLEX) method is used for analysis, the flexibility of key components is first processed.…”

Section: Gear Rigid-flexible Coupling Modelmentioning

confidence: 99%

Comparative analysis of dynamic load characteristics of artillery steering gear based on different MBD methods

Si,

Yu,

Luo

et al. 2024

J. Phys.: Conf. Ser.

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The multi-body dynamics analysis model of the steering gear of a certain type of artillery was established. The dynamic load characteristics of the output gear of the steering gear motor and its driven gear under the given speed and load conditions were calculated based on the three different MBD analysis methods, such as the speed, meshing force, and contact stress. Through the comparative analysis, it was concluded that the calculation results of rigid-flexible coupling analysis were closer to the theoretical value and the fluctuation range was smaller, which provides reference and basis for the prediction of gear fatigue life and the optimization design under dynamic load conditions.

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Section: Gear Rigid-flexible Coupling Modelmentioning

confidence: 99%

Comparative analysis of dynamic load characteristics of artillery steering gear based on different MBD methods

Si,

Yu,

Luo

et al. 2024

J. Phys.: Conf. Ser.

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“…Li et al [44] analyzed the influence of input torque, backlash, and meshing damping on the bifurcation and impact characteristics of a multi-stage planetary gear system. Liu et al [45] proposed a method for modeling the nonlinear dynamics of a multi-stage planetary gear transmission system composed of two-stage planetary gears and one parallel-axis gear. They analyzed the bifurcation characteristics of the system with changes in excitation frequency and meshing error.…”

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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“…used bifurcation diagrams and spectra to analyze the bifurcation characteristics of a nonlinear dynamic model considering factors such as backlash, friction, and time-varying meshing stiffness; Liu [5] and then numerically solved it; Li [6] et al…”

Section: Introductionmentioning

confidence: 99%

Analysis of nonlinear dynamic characteristics of planetary gears considering the influence of wear and temperature effects

wang,

Bi,

Luo

et al. 2023

Preprint

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The phenomenon of gear backlash is observed to increase as the planetary gears undergo wear, leading to an exacerbation of vibrations within the gear gearbox system. This heightened wear further contributes to the generation of substantial heat, consequently causing an elevation in temperature. As a consequence, the thermal deformation of the gear occurs, thereby affecting its capacity to effectively transmit power. This study presents the development of a nonlinear dynamic model for a gear system, incorporating the influence of wear and temperature. The model is constructed by integrating the Archard wear model with the thermal deformation idea. The present work investigates the influence of wear and temperature on the nonlinear dynamic characteristics of a gear system using a range of analytical techniques, such as bifurcation diagrams, Maximum Lyapunov index charts, phase diagrams, and Poincare cross section diagrams. The results suggest that there is a shift in the system's behaviors from displaying multi-period movement to single-period movement as the temperature rise increases, with wear reduction being the driving factor. As the magnitude of wear increases, the system exhibits a transition from chaotic motion to periodic motion as the temperature rises.

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Nonlinear Dynamics Analysis of a Multistage Planetary Gear Transmission System

Cited by 12 publications

References 17 publications

Comparative analysis of dynamic load characteristics of artillery steering gear based on different MBD methods

Comparative analysis of dynamic load characteristics of artillery steering gear based on different MBD methods

Study on Nonlinear Dynamic Characteristics of RV Reducer Transmission System

Analysis of nonlinear dynamic characteristics of planetary gears considering the influence of wear and temperature effects

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