Dynamic modeling and vibration analysis of a flexible gear transmission system

Liu, Jing; Li, Xinbin; Xia, Min

doi:10.1016/j.ymssp.2023.110367

Cited by 29 publications

(4 citation statements)

References 37 publications

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“…Yi et al 16 studied the resonant effect caused by variable compliance vibrations in the elastic rotors with rolling bearings. Liu et al 17 proposed a dynamic model for multi-stage gear-transmission system and analyzed the vibrations under different speeds.…”

Section: Introductionsupporting

confidence: 87%

A vibration model of a flexible rotor-bearing system considering the defect in a double-row cylindrical roller bearing

Liu,

Fancheng,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part K:

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Vibration analysis of double-row cylindrical roller bearing systems is useful for controlling the vibrations of rotating transmission systems. However, most current works only formulated the rotor system with single-row cylindrical roller bearings. Moreover, the vibration characteristics of the rotor system with defective double-row cylindrical roller bearings are not clearly. To overcome this problem, a vibration model of a flexible rotor system with the defective double-row cylindrical roller bearing is proposed in this work. The effects of the speed and defect on the vibrations of flexible rotor systems are studied. The vibrations from flexible and rigid models are compared under different rotation speeds. Note that the vibration waveforms from rigid and flexible models are similar. The vibrations of different nodes are different under different speeds, which cannot be formulated by the previous rigid models. The vibration model can better represent the vibrations of rotor systems with and without the defect. Moreover, this paper can provide a comprehensive analytical method for vibrations and acoustics of flexible rotor systems with the double-row cylindrical roller bearings.

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Section: Introductionsupporting

confidence: 87%

A vibration model of a flexible rotor-bearing system considering the defect in a double-row cylindrical roller bearing

Liu,

Fancheng,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…where m r is the roller mass; x r , y r , Φ r , and θ r are the roller displacements in x and y directions, angular displacement around its own axis, and angular displacement around the bearing axis, respectively; D w is the roller diameter; R o and R i are the outer and inner ring radiuses; d m is the bearing pitch diameter; I r and I rc are the roller moment around the roller axis and bearing axis; F cj and f cj are the roller-cage impact force and friction force; F c1 is the centrifugal force rotating about the bearing axis; and F d is the viscosity friction force. 28 The above parameters are calculated by 29,30…”

Section: The Contact Force Model By Considering the Defect Edge Addit...mentioning

confidence: 99%

Dynamic modeling of cylindrical roller bearings by considering non-through defects and additional forces

Liu

Shi

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part K:

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Cylindrical roller bearings are essential components in rotating mechanical systems, and ensuring their reliable operation is importance. Accurate modeling of cylindrical roller bearing defects is therefore crucial for enabling effective predictive maintenance strategies in various industries. However, previous studies have overlooked the presence of additional forces that occur when rollers enter and exit non-through defects, leading to inaccuracies in bearing vibration calculations. This work proposes a novel model that captures the bearing vibrations during this process, by considering the defect edge feature of the cylindrical roller bearings. The contact force between the roller and the defective ring is calculated by using the non-ideal Hertzian contact theory, while the additional force is characterized by a time-varying function based on the geometric relationship and Hertzian contact theory. To validate the proposed model, comparison work is carried out between the contact forces calculated using this model and those obtained from existing models, demonstrating the significance of the additional force during the process of rollers entering and exiting non-through defects. Furthermore, the effects of the outer ring defect width, length, and edge angle on cylindrical roller bearing vibrations are investigated and discussed. Compared with the previous studies, this work considers both the additional forces caused by the defect and defect edge feature, and combines the non-ideal Hertzian contact theory to obtain a more reasonable dynamic of the defective cylindrical roller bearings.

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“…The bond graph method has also been used to simulate an entire vehicle model [ 14 , 15 ]. Hu [ 16 ] analyzed the transmission efficiency under all possible power flows based on a bond graph model, in order to design and optimize low-impact control strategies. Furthermore, based on the standard definition of causality for a bond graph, Li [ 17 ] designed a standardized modeling process of gearbox, but did not pay attention to clutch.…”

Section: Introductionmentioning

confidence: 99%

Study on nonlinear dynamics characteristics of dual speed dual clutch transmission system based on bond graph

Wu,

Yan,

Liu

et al. 2023

Heliyon

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Dynamic modeling and vibration analysis of a flexible gear transmission system

Cited by 29 publications

References 37 publications

A vibration model of a flexible rotor-bearing system considering the defect in a double-row cylindrical roller bearing

A vibration model of a flexible rotor-bearing system considering the defect in a double-row cylindrical roller bearing

Dynamic modeling of cylindrical roller bearings by considering non-through defects and additional forces

Study on nonlinear dynamics characteristics of dual speed dual clutch transmission system based on bond graph

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