Stiffness and damping of elastohydrodynamic line contact applied to cylindrical roller bearing dynamic model

Tsuha, Natália Akemi Hoshikawa; Cavalca, Kátia Lucchesi

doi:10.1016/j.jsv.2020.115444

Cited by 32 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To improve the detection efficiency, the drive device should accelerate the cylindrical roller to the set speed in the shortest possible time [15,16], but the angular acceleration is too large and will cause the vacuum suction cup and the cylindrical roller surface to slide, in order not to damage the cylindrical roller surface, the friction torque needs to be much larger than the starting torque of the cylindrical roller.…”

Section: Cylindrical Roller Force Analysismentioning

confidence: 99%

Design and Research of Non-destructive Detection Drive Device for Precision Type Cylindrical Roller Dynamic Unbalance

Liang

Duan

Zhang

et al. 2023

Preprint

View full text Add to dashboard Cite

In order to solve the problem of small high-speed precision cylindrical roller, which is difficult to drive and the surface is easily damaged when doing dynamic unbalance detection due to the small size and light mass of the roller, this paper proposes a new drive method, using air flotation non-destructive support instead of V-block or cylindrical surface of the roller and other lossy contact support and air flotation electric spindle combined with vacuum suction cup instead of belt friction drive; establish a mathematical model of cylindrical roller force to study the force of cylindrical roller in the air flotation sleeve during the drive, and through the force analysis, it is shown that under the condition that the structural parameters and material parameters of the drive remain unchanged, the start-up speed of the drive depends on the load-bearing capacity of the air film on the cylindrical roller; the mathematical model of the air film load-bearing capacity and the thickness of the air film is established to study the changing characteristics of the air film load-bearing capacity in the air flotation sleeve, and the correctness of the mathematical model is verified through numerical calculation combined with simulation analysis; the test platform of the drive device based on the non destructive detection of cylindrical roller dynamic unbalance is built to further verify the feasibility of high-speed non-destructive drive of cylindrical rollers and to create favorable conditions for the development of the non-destructive detection instrument for small mass cylindrical rollers dynamic unbalance.

show abstract

Section: Cylindrical Roller Force Analysismentioning

confidence: 99%

Design and Research of Non-destructive Detection Drive Device for Precision Type Cylindrical Roller Dynamic Unbalance

Liang

Duan

Zhang

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…While if δ i > 0, it means that the inner ring of the bearing is in contact with the roller, and the roller provides Hertz contact force. According to the theory of bearing roller line contact theory [25], the bearing force can be expressed as Shock and Vibration 3…”

Section: Intershaft Bearing Force Modelmentioning

confidence: 99%

Parameter Analysis of an Intershaft Dual‐Rotor with the Application of Squeeze Film Dampers

Chen

Zhong

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

The squeeze film damper is usually adopted in the rotor system to suppress the vibrating motion of the rotor system. In this work, not only are the physical parameters of the squeeze film damper analyzed but also the system parameters, like the number of squeeze film dampers used and squeeze film damper implementation positions, are analyzed. The amplitude-frequency curves are obtained by conducting the simulation of a dual-rotor, intershaft, and oil film force concatenated model. Through the analysis and comparisons of the results, the vibration suppression effects of the squeeze film damper with different parameter configurations are analyzed and summarized. This work contributes to further optimization and dynamical analysis work on rotor systems with the application of the squeeze film damper.

show abstract

“…Though the literature [15] presents an estimation method for quantifying the TRBs' defect size, the method analyzes the entry or exit event based on the vibration response as a rolling element over the penetrating damage. Unlike the point contact between the ball and the raceway, the contact between the tapered roller and the raceway is the line contact [26]. In addition, the non-penetrating defect of the TRB is closer to the actual working condition.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Fault Size Estimation for Non-Penetrating Damage in the Outer Raceway of Tapered Roller Bearing

et al. 2022

View full text Add to dashboard Cite

The fault quantification of a tapered roller bearing (TRB) can provide a reliable guide for predictive maintenance. Currently, damage size estimation based on vibration signals has been proposed and developed. However, most approaches are focused on the theory of ball bearings. Unlike the point contact of a ball bearing, the contact between the tapered roller and the raceway is a line contact. So, the current practices based on the micro-motion theory of ball bearings are limited when estimating the TRB’s fault. To accurately estimate the TRB’s damage size, a dynamic model of non-penetrating damaged TRB was established to research the vibration response mechanism and explain the influence. The model takes the deflection factor of a tapered roller into consideration and uses the elastohydrodynamic lubrication model to simulate the influence of the lubrication factor. Then, a revised formula for estimating the TRBs’ fault size is proposed by uncovering the relationship between the impact time and the damage location. Simulation analysis and experimental analysis prove the correctness of the dynamic model and the effectiveness of the size estimation formula.

show abstract

Stiffness and damping of elastohydrodynamic line contact applied to cylindrical roller bearing dynamic model

Cited by 32 publications

References 27 publications

Design and Research of Non-destructive Detection Drive Device for Precision Type Cylindrical Roller Dynamic Unbalance

Design and Research of Non-destructive Detection Drive Device for Precision Type Cylindrical Roller Dynamic Unbalance

Parameter Analysis of an Intershaft Dual‐Rotor with the Application of Squeeze Film Dampers

Modeling and Fault Size Estimation for Non-Penetrating Damage in the Outer Raceway of Tapered Roller Bearing

Contact Info

Product

Resources

About