Three-dimensional finite element analysis of self-acting foil bearings

Heinrich, J. C.; Connolly, Derry

doi:10.1016/0045-7825(92)90113-x

Cited by 17 publications

(2 citation statements)

References 6 publications

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“…The magnetic tape reader is analogous to the roller-wrapped-substrate system studied in this work. Tape reader systems consist of stationary read heads with precisely formed depressions that control the gap thickness as the tensioned web (tape) is translated past it . The study of these systems began with analysis of what are called prefectly flexible foil bearings in which the bearing material would offer no structural resistance to axial deformation.…”

Section: Introductionmentioning

confidence: 99%

“…Tape reader systems consist of stationary read heads with precisely formed depressions that control the gap thickness as the tensioned web (tape) is translated past it. 17 The study of these systems began with analysis of what are called prefectly flexible foil bearings in which the bearing material would offer no structural resistance to axial deformation. Blok and van Rossum 18 observed that pressure and thickness of the fluid gap are constant through the length of the bearing, except for the leading and trailing regions.…”

Section: ■ Introductionmentioning

confidence: 99%

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Elastohydrodynamics of Roll-to-Roll UV-Cure Imprint Lithography

Cochrane

Tjiptowidjojo

Bonnecaze

et al. 2019

Ind. Eng. Chem. Res.

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The inextensible cylindrical shell theory and lubrication theory combine into a model for the elastohydrodynamics of a rolling-imprint modality of nanoimprint lithography (NIL). Foil-bearing theory describes the formation of the lubrication gap due to relative motion between a tensioned substrate and a rigid, cylindrical surface. Reproduction of the results of foil-bearing theory for both stiff and perfectly flexible substrates validates this coupled model and reveals a highly predictable region of uniformity that provides low shear stress conditions ideal for UV-cure. These results show theoretical limitations that are used to construct an operating window for predicting rolling-mode NIL process feasibility.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%