The Behaviour of A Total Cross Flow Hydrostatic Journal Bearing

Mohsin, M. Ezzat; Sharratt, Andrew

doi:10.1007/978-1-349-06546-2_2

Cited by 3 publications

(1 citation statement)

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“…The main advantage of the double diaphragm valve over the other systems is its manufacturing simplicity. Mohsin et al [11] showed that the use of a membrane restrictor to compensate for the hydrostatic bearings enhances the static and dynamic stiffness of a bearing and reduces the power requirement. Morsi [12] discussed the performance of a hydrostatic thrust bearings compensated by passive and active restrictors from the point of view of fluid film stiffness and power requirement.…”

Section: Introductionmentioning

confidence: 99%

Semi-Analytical Analysis of a Rigid Rotor Mounted on Four-Pad Hydrostatic Squeeze Film Damper with Single-Action Membrane-Type Restrictors

Kechra,

Bouzidaine

2023

Acta Mechanica Et Automatica

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The current study is a semi-analytical analysis of the vibratory behaviour of a rigid vertical rotor, supported by a new hydrostatic squeeze film damper (HSFD), consisting of four hydrostatic pads fed through four single-action membrane-type variable-flow restrictors. The Reynolds equation based on the Newtonian theory of lubrication is used and then adapted to our work, which is solved semi-analytically. In this paper, we study the effect of different parameters, the eccentricity, membrane geometry coefficient, pressure ratio and rotational speed, on the main characteristics of a four-pad HSFD. From the simulation results, we observed that at the critical speed, the rigid rotor fed by membrane restrictor shows a decrease in transmitted forces, a decrease in vibration response and good system stability as compared with a similar rotor fed by capillary restrictor. From the results reported in this work, we observed good agreement between our study and other works.

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Section: Introductionmentioning

confidence: 99%