Vibration response analysis of a gear-rotor-bearing system considering steady-state temperature

Sun, Zhou; Chen, Siyu; Hu, Zehua; Lei, Duncai

doi:10.1007/s11071-021-07024-8

Cited by 19 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The TVMS is often the main object of study when analyzing the running dynamics of a gear pair and the distribution of tooth contact loads [4][5][6]. Cai [7] first proposed an empirical equation based on the ISO standard to calculate the TVMS of a gear pair.…”

Section: Introductionmentioning

confidence: 99%

Dynamical model of fatigue pitting fault helical gear pair considering lubricating oil film influence: Theoretical analysis and experimental verification

Pu,

Chen,

et al. 2024

Preprint

View full text Add to dashboard Cite

For the helical gear fault diagnosis investigation, it is essential to establish a pitting dynamics model that incorporates several nonlinear parameters to simulate the fault characteristics. This paper proposes a multi-degree-of-freedom analytical nonlinear dynamic model of helical gear pair under pitting fault, introducing the stiffness and damping parameters of gear matrix and lubricant film, the variable friction coefficient of elastohydrodynamic lubrication (EHL), and the measured meshing profile error. Contact fatigue experiments are carried out with a helical gear transmission test bench to gain the full-stage vibration response from healthy to severe pitting fault conditions to validate the reliability of the proposed nonlinear dynamics model. The distribution and amplitude of the eigenfrequencies of the analytical results, considering the influence of the lubricating oil film, are more consistent with the experimental measurements, where the sidebands between the three times and four times fundamental frequency are in acceptable agreement. The comparison results confirm the importance of considering the influence of the lubricant film when studying the dynamics of gear tooth pitting failures, and the analytical method and proposed model can be a reference for dynamical simulation modelling for gear fatigue failure diagnosis and analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Dynamical model of fatigue pitting fault helical gear pair considering lubricating oil film influence: Theoretical analysis and experimental verification

Pu,

Chen,

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…They revealed the effects of the meshing damping and stiffness on the natural amplitude-frequency characteristics of the PGS. Sun et al [11] proposed an improved dynamic model of a PGS with the material thermal properties. They found that the rise in temperature can cause chaos in the system.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Li,

Xu,

Liu

et al. 2024

Lubricants

View full text Add to dashboard Cite

Electromechanical energy conversion systems (EECSs) are widely used in vehicles to combine the double-row planetary gear system (DRPGS) with high transmission efficiency and high-performance motors. The integrated structure of the ring gear and motor rotor have put forward higher demands for the vibration performance of the DRPGS. This paper establishes a multibody dynamic model of the DRPGS for an EECS. Based on the kinetic relationship between the gear pairs and bearing components, the dynamic equations of the DRPGS are derived. The DRPGS model is simulated under different operating conditions. The results are compared to reveal the relationships between the system vibration and the operating speed and load torque. The typical conditions are selected to study the effectiveness of the structural parameters in reducing the DRPGS vibrations. The structural parameters, including the bearing clearance, the ball numbers, the gear tooth modification amount, and length, are comprehensively discussed. Several suggestions for the low-vibration design of the DRPGS for the EECS are provided.

show abstract

“…Wang et al [58] discussed the effect of temperature on the backlash based on the principle of thermal deformation, and analyzed the nonlinear dynamics of gear systems with time-varying backlash. Sun et al [59] proposed a calculated model of thermal backlash considering the influences of thermal expansion and temperature on material properties based on the steady-state temperature and finite element node method. Guo and Parker [60] investigated the bifurcation and chaos characteristics of planetary gears considering tooth separation and backlash.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic modeling and global instability analyses of planetary gear trains considering multi-state engagement and tooth-contact temperature effects

Bai,

Qiu,

Shi

et al. 2023

Nonlinear Dyn

View full text Add to dashboard Cite

Gear disengaging, back-side tooth contact or poor dynamic behavior during operating leads to dynamic instability in planetary gear trains (PGTs). A novel nonlinear dynamic model of PGTs with internal and external gear pairs considering multi-state engagement induced by backlash and contact ratio is established. An improved time-varying meshing stiffness model including temperature stiffness is analytically derived. The time-varying meshing stiffness with temperature effect, friction, backlash, time-varying pressure angle, and time-varying friction arm are integrated into the dynamic model of PGTs. Multi-state engaging behavior is efficiently identified by constructing different Poincaré mappings. A method to calculate dynamic instability is proposed in the time-domain trace. The intrinsic relationship between multi-state engaging and dynamic instability is investigated via multi-section bifurcation plots and phase trajectory topology. The global dynamic instability is revealed based on the bifurcation and evolution of coexistence behavior under the parameter-state synergy. The results show that the multistate engagement is heavily depending on bifurcation and phase trajectory topology, which whereby affects the dynamic instability. Two special phenomena, complete and incomplete bifurcations, are discovered under parameter-state synergy. Complete bifurcation causes global instability and incomplete bifurcation results in local instability and yields coexistence responses. Incomplete bifurcation brings about new bifurcation branches.

show abstract

Vibration response analysis of a gear-rotor-bearing system considering steady-state temperature

Cited by 19 publications

References 32 publications

Dynamical model of fatigue pitting fault helical gear pair considering lubricating oil film influence: Theoretical analysis and experimental verification

Dynamical model of fatigue pitting fault helical gear pair considering lubricating oil film influence: Theoretical analysis and experimental verification

Vibration Analysis of the Double Row Planetary Gear System for an Electromechanical Energy Conversion System

Nonlinear dynamic modeling and global instability analyses of planetary gear trains considering multi-state engagement and tooth-contact temperature effects

Contact Info

Product

Resources

About