Anatoliy Serdjuchenko, Aleksandr Ursolov, Yuriy Batrak
Intellectual Maritime Technologies, Buznika 5, room 15, Mykolaiv, Ukraine 54010
Corresponding author.
E-mail address: aleksandr.ursolov@shaftdesigner.software (Ursolov A.)
Abstract
An analytical approach based on the asymptotic technique is applied to estimate hydrodynamic pressure in lubrication film of water-lubricated stave bearings with length/diameter ratio L/D>1. Circular staves and flat staves with aligned and misaligned journals have been considered. Explicit small physical parameter (0.5D/L)2<<1 is used for asymptotic series to solve the boundary value problem. Analytical results have been derived in the three first approaches on the small parameter and compared with the numerical results based on FEM calculations. Comparison of the results showed that difference in the results do not exceed 25% for the maximum pressure, however at the same time value and variation of the pressure field strongly depend on the staves kind, eccentricity and misalignment of the journal.
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| Bearing with circular staves | bearing with flat staves |
Geometric configuration of the lubrication film
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| Aligned journal | Misaligned journal |
3D diagrams with sections of pressure field in the bearing
See the full article at Tribology International (https://doi.org/10.1016/j.triboint.2022.107798).