Investigations on the dynamic behaviour of an on-board rotor-AMB system with touchdown bearing contacts: modelling and experimentation

Jarroux, Clément; Mahfoud, Jarir; Dufour, Régis; Legrand, Franck; Defoy, Benjamin; Alban, Thomas

doi:10.1016/j.ymssp.2021.107787

Cited by 17 publications

(1 citation statement)

References 54 publications

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“…SUN [8] conducted a study on the correlation between the stiffness of cage-free bearings and the dynamic distribution of rolling body rotation. They [9] also analyzed the vibration eigenvalues of the inner ring to understand the causes of instability induced by the contact stiffness model. This research offers valuable insights for the development of cage-free bearings.…”

Section: Introductionmentioning

confidence: 99%

Study of Non-Smooth Symmetry Collision of Rolling Bodies of Localized Functional-Slot Cage-Less Ball Bearings Considering Lubrication Flow

Zhang,

Wang,

Guan

et al. 2024

Symmetry

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This article presents a vibration model of neighboring rolling parts that takes into account non-smooth symmetric collisions. This model was used to examine the motion state of the rolling element and the collision force between nearby rolling elements. It also determined the motion posture and overall collision form of the rolling element after setting the functional slot. Afterwards, the level of disorderly movement and the structure of the moving object were examined and confirmed through the use of a phase diagram of the motion system in relation to zero symmetry, the Lyapunov exponent, and a platform for measuring irregular vibrations in the bearing. This work aims to clarify the factors that contribute to the persistent chaotic state of rolling elements in bearing vibration.

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Section: Introductionmentioning

confidence: 99%