Slot-entry herringbone grooved hybrid conical bearings under piezo-viscous lubrication
Abstract
This study investigates the effect of herringbone groove geometry and piezoviscous shear-thinning fluid (PVSTF) behavior on the performance of slot-entry hybrid conical journal bearings (SHCJBs). Using a modified Reynolds equation solved via finite element analysis and the Gauss–Seidel method, the influence of groove angles (30°, 60°, and 90°), semi-cone angles, and lubricant type on key tribological parameters is examined. The results indicate that a 30° groove angle in combination with PVSTF yields the highest stiffness coefficients and stability margins, while also reducing frictional torque compared to non-grooved designs and Newtonian lubricants. These findings provide design guidance for optimizing bearing geometry and lubricant selection, with applicability to high-performance rotating machinery.
Details
- Organisationseinheit(en)
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Institut für Maschinenkonstruktion und Tribologie
- Externe Organisation(en)
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Pontificia Universidad Católica de Chile
University of Pune
Indian Institute of Technology Roorkee (IITR)
- Typ
- Artikel
- Journal
- International Journal of Mechanical Sciences
- Band
- 305
- Anzahl der Seiten
- 19
- ISSN
- 0020-7403
- Publikationsdatum
- 01.11.2025
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Tief- und Ingenieurbau, Allgemeine Materialwissenschaften, Luft- und Raumfahrttechnik, Physik der kondensierten Materie, Meerestechnik, Werkstoffmechanik, Maschinenbau, Angewandte Mathematik
- Elektronische Version(en)
-
https://doi.org/10.1016/j.ijmecsci.2025.110787 (Zugang:
Geschlossen
)
