Numerical Study of the Sensitivity of Tilting Pad Journal Bearing Performance Characteristics to Manufacturing Tolerances: Steady-State Analysis

Fillon, Michel; Dmochowski, Waldemar; Dadouche, Azzedine

doi:10.1080/10402000701429246

Cited by 34 publications

(15 citation statements)

References 8 publications

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“…However, the values of TXT1-2 are typified by large circle intervals and distinct circle fits which may have contributed to its failure. Furthermore, it is important to recall that geometrical tolerances significantly affect bearings' performance characteristics as outlined in [12][13][14]. …”

Section: Resultsmentioning

confidence: 99%

Operational performance of textured journal bearings lubricated with a contaminated fluid

Dadouche

Conlon

2016

Tribology International

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Section: Resultsmentioning

confidence: 99%

Operational performance of textured journal bearings lubricated with a contaminated fluid

Dadouche

Conlon

2016

Tribology International

Self Cite

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“…A similar approach is presented by Chun in a thermo‐hydrodynamic analysis of the bearing. A broad study of tilting‐pad bearing sensitivity is presented by Fillon et al . where variations of pre‐load factor, assembling clearance and pivot positions are investigated.…”

Section: Introductionmentioning

confidence: 99%

“…A similar approach is presented by Chun 4 in a thermo-hydrodynamic analysis of the bearing. A broad study of tilting-pad bearing sensitivity is presented by Fillon et al 5 where variations of pre-load factor, assembling clearance and pivot positions are investigated. The influence of manufacturing dimensional variation of bearings is investigated by Ogrodnik et al 6 where the authors focus on dynamic stability of the rotor-bearing system.…”

Section: Introductionmentioning

confidence: 99%

The effect of permeability distribution on the numerical analysis of aerostatic ceramic porous bearings

Nicoletti

Purquerio

Silveira

2012

Lubrication Science

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This work presents a numerical study on the effect of permeability on the static characteristics of aerostatic ceramic porous bearings. This study is important in bearing design because of the inherent permeability variation of the porous ceramic samples induced by manufacturing and sintering processes. The mathematical modelling of these bearings is based on the modified Reynolds equation, which depends on the pressure‐flow assumption (Darcy or Forchheimer) and on the static and dynamic permeability coefficients of the porous matrix. In this work, the modified Reynolds equation is numerically solved considering the variations of permeability values, whose distribution was obtained from experimental tests of the ceramic samples. Monte Carlo method is used to introduce variability in the solutions. One focuses on the effects of such variation on the results of predicted bearing loading capacity. Results show that optimum regions of the bearing load capacity do not vary significantly due to static and dynamic permeability variations. Copyright © 2012 John Wiley & Sons, Ltd.

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“…It also has a relationship with the manufacturing tolerances, as the bearing parameters' variations within the manufacturing tolerances can affect performance significantly. 25 Principal stiffness and damping coefficients in the databook increase with the increase in the Sommerfeld number. The same variation rule is followed by simulation results, except for a mutation in the Y-axis direction.…”

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confidence: 98%

A new dynamic mesh algorithm for studying the 3D transient flow field of tilting pad journal bearings

Pan

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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A new dynamic mesh algorithm is developed in this paper to realize the three-dimensional (3D) computational fluid dynamics (CFD) method for studying the small clearance transient flow field of tilting pad journal bearings (TPJBs). It is based on a structured grid, ensuring that the total number and the topology relationship of the grid nodes remain unchanged during the dynamic mesh updating process. The displacements of the grid nodes can be precisely recalculated at every time step. The updated mesh maintains high quality and is suitable for transient calculation of large journal displacement in FLUENT. The calculation results, such as the static equilibrium position and the dynamic characteristic coefficients, are consistent with the two-dimensional (2D) solution of the Reynolds equation. Furthermore, in the process of transient analysis, under conditions in which the journal is away from the static equilibrium position, evident differences appear between linearized and transient oil film forces, indicating that the nonlinear transient calculation is more suitable for studying the rotor-bearing system.

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Numerical Study of the Sensitivity of Tilting Pad Journal Bearing Performance Characteristics to Manufacturing Tolerances: Steady-State Analysis

Cited by 34 publications

References 8 publications

Operational performance of textured journal bearings lubricated with a contaminated fluid

Operational performance of textured journal bearings lubricated with a contaminated fluid

The effect of permeability distribution on the numerical analysis of aerostatic ceramic porous bearings

A new dynamic mesh algorithm for studying the 3D transient flow field of tilting pad journal bearings

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