Aerostatic thrust bearing performances analysis considering the fluid-structure coupling effect

Lu, Lihua; Chen, Wanqun; Yu, Nan; Wang, Zhiguo; Chen, Guoda

doi:10.1177/1350650116642098

Cited by 19 publications

(13 citation statements)

References 14 publications

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“…In order to investigate the convergence characteristics of the FDFI method, we choose the following parameters: the bearing diameters R 1 =75 mm, R 2 =50 mm, and R 0 =62.5 mm, and a row is arranged with eight orifices, the diameter of the orifice d = 0.2 mm, the average clearance h 0 =20 μm, the supply pressure p 0 =0.5 MPa, the rotational speed ω = 0, and the eccentricity ratio ɛ = 0.2. The convergence condition is set to E ≤ 10 −6 . Figure 7 shows the pressure distribution under the above conditions.…”

Section: Convergence Characteristics Of the Fdfi Methodsmentioning

confidence: 99%

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The flow-difference feedback iteration method for aerostatic thrust bearings and its convergence characteristics

Zhou

Zhang

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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The flow-difference feedback iteration method for aerostatic thrust bearings is proposed to the flow balance-based iteration, and two modification methods are further provided to improve the adaptability. The bearing capability calculated by the proposed method is validated by the experimental data. Moreover, the influence of convergence rate factors, iterative initial values, and mesh grids on the iteration ratio is investigated. Compared with the conventional iteration methods, the proposed method with appropriate convergence rate factors provides a higher convergence efficiency. In addition, good convergence behavior under different iterative initial values and the mesh grid size is shown, and the convergence rate is insensitive to the finite difference method parameters. A series of calculations are conducted to investigate the generality of the proposed methods.

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Section: Convergence Characteristics Of the Fdfi Methodsmentioning

confidence: 99%

“…Lu et al. 6 provided a calculation method for the performance of aerostatic thrust bearings, which took the fluid–structure coupling effect into account. Li et al.…”

Section: Introductionmentioning

confidence: 99%

The flow-difference feedback iteration method for aerostatic thrust bearings and its convergence characteristics

Zhou

Zhang

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Lu et al. 7 presented a novel calculation method for the bearing performance of the aerostatic thrust bearing, and the influencing factors on the bearing performance, the thrust plate’s thickness, and the orifices’ location were investigated on the basis of the fluid–structure coupling effect.…”

Section: Introductionmentioning

confidence: 99%

Influence of microscale effect on the radial rotation error of aerostatic spindle

Zha

Zhao

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper presents the influence of the microscale effect on the radial rotation error of aerostatic spindle, which is determined by the corresponding stiffness, damping, and unbalance mass. A microscale gas film flow model is used to simulate the static performance of the aerostatic bearing by introducing the microscale effect factor Q in this paper. Firstly, the radial stiffness and damping coefficients of aerostatic bearing were calculated considering microscale effect factor Q, therefore, the position of the rotating shaft in radial plane was deduced, and the corresponding rotation error was obtained. Finally, the simulation results of the stiffness and radial rotation error were verified by the experiment on the shaft test table, and the motion orbit was measured by a displace sensor with a high precision standard ball. The experimental results indicated that the simulated result considering the microscale effect factor Q was more consistent with the actual experimental value, which provided a reference for the design and optimization of the aerostatic spindle.

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“…Our previous researches theoretically and experimentally studied the static performance of aerostatic spindle with consideration of FSI effect. 16,17 It indicated that the thickness of thrust plate affects the performance of aerostatic spindle greatly. If its thickness is too thin, the air film force could result in large deformation of thrust plate and lower the static performance of aerostatic bearing.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the fluid–structure interaction effect of an aerostatic spindle and the influence of structural dimensions on its performance

Gao

Chen

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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The performances of aerostatic spindle are highly affected by the fluid–structure interaction between air film and solid structure. This paper proposes a comprehensive two-way fluid–structure interaction model to analyze the fluid–structure interaction effect of an aerostatic spindle. The structure deformation induced by air film pressure is considered to predict the actual performance of aerostatic spindle. Furthermore, to provide theoretical basis for the structure parameters design, the influence of structural dimensions (such as the thickness of thrust plate) on its performance is investigated, and optimal structural parameters are acquired. The stiffness of aerostatic spindle with varying thrust plate thickness is tested to verify the reliability of simulation results.

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Aerostatic thrust bearing performances analysis considering the fluid-structure coupling effect

Cited by 19 publications

References 14 publications

The flow-difference feedback iteration method for aerostatic thrust bearings and its convergence characteristics

The flow-difference feedback iteration method for aerostatic thrust bearings and its convergence characteristics

Influence of microscale effect on the radial rotation error of aerostatic spindle

Investigation on the fluid–structure interaction effect of an aerostatic spindle and the influence of structural dimensions on its performance

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