Prediction of fatigue damage and spalling in a multilayered journal bearing shell

El-Daher, Chafic C.; Kébir, Hocine; Bouvier, Salima; Pont, Mathieu; Hay, Maxime

doi:10.1016/j.triboint.2022.107850

Cited by 4 publications

(1 citation statement)

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“…After performing an initial Fluid–Structure Interaction (FSI) study at several eccentricity ratios, the fatigue life of the bearing bush was assessed using nCode 2023.1 DesignLife software 27 . Ding et al 28 and El-daher et al 29 investigated the remaining useful life of the journal bearing using both numerical and experimental work on multilayered journal bearing considering multiaxial stresses (both normal and shear stresses). They used modified Dang Van's criteria to numerically predict the life of the journal.…”

Section: Introductionmentioning

confidence: 99%

Topological optimization and fatigue life prediction of a single pad externally adjustable fluid film bearing

Kamat,

Pai,

Vernekar

et al. 2024

Sci Rep

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This work focuses on the prediction and comparison of the fatigue life of topologically optimized pads in an externally adjustable fluid film (EAFF) bearing. It integrates one-way/two-way fluid–structure interaction analysis, topological optimization (TO), and design modifications of the pad of an externally adjustable fluid film bearing. The major goal is to create an optimum pad design that minimizes weight and maintains structural integrity, and then to predict and compare the fatigue life of these alternative designs. The outcomes of the present study are as follows: (i) Two-way FSI results show a decrease of 65.64% in hydrodynamic fluid film pressure when compared to one-way FSI results because they take into account modifications in the fluid region's geometry caused by pad deformation; (ii) even though the maximum pad deformation in optimized pad geometry (Type-4) resulting from oil film pressure is relatively small (0.0036551 mm), the influence of pad deformation on the fluid domain due to hydrodynamic fluid film pressure cannot be understated; and (iii) when comparing the TO technique's results with fatigue life results, four elongated holes in the radial direction (Type-4) are most appropriate.

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Section: Introductionmentioning

confidence: 99%