Numerical modeling of poro-elasticity effects on squeeze film of parallel plates using homogenization method

Gbehe, Ory Serge Tanguy; Khlifi, Mohamed El; Nabhani, Mohamed; Bou‐Saïd, Benyebka

doi:10.1016/j.triboint.2016.05.025

Cited by 4 publications

(4 citation statements)

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“…h(t) represents the clearance between two plates. The oil film is considered incompressible [12]. When inertia effects can be disregarded, the continuity and motion equations read [13]: 1-electromagnetic exciter 2-stationary housing 3-pull-rods and spring wires 4-mirror with support 5-movable frame 6-base plate 7-displacement sensor 8-lower thrust plate 9-vibration sensor 10-wall of oil pool 11-upper transparent plate 12-mirror 13-force sensor …”

Section: Resultsmentioning

confidence: 99%

“…The experimental conditions were the same as those in Table 1 except the squeeze oscillation frequency. And the squeeze oscillation frequency took 10 Hz as center (same as idle speed 600 rpm), including 5,8,10,12,15,18 Hz. The purpose of these experiments was to find out the reason why noise most easily occurred when idle speed was 600 rpm.…”

Section: The Influence Of Oscillation Frequencymentioning

confidence: 99%

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Principle Experiments Research of Noise in Engine Main Bearing

et al. 2018

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A squeeze film test apparatus was used to study the mechanism and characteristics of the irregular typewriter noise in engine main bearings oil films. To simulate the dynamic load of the bearing, the transparent moving plate in the test apparatus was moved upward and downward rapidly. The high-speed camera system was used for photographing oil film of the test area. The test apparatus could collect five kinds of signals, sound, displacement, vibration acceleration, force, and pictures of squeeze oil simultaneously during the test running. The irregular noise appeared in the test and the maximum value of irregular noise's sound pressure reached 3 Pa. And the clear pictures of cavitation when irregular noise occurred were taken simultaneously and consecutively via high-speed camera system. The results show that noise occurs under the condition where the collapsed cavitation reached the atmosphere in the falling process of the moving plate. The parameters such as vibration exciting signals, lubricating oil quantity, and oscillation frequency were tested in experiments. There are negative correlations between lubricating oil quantity and the intensity and occurrence rate of the noise. The noise is most prone to occur under square wave excitation and at the oscillation frequency of 12 Hz.

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Section: Resultsmentioning

confidence: 99%

Section: The Influence Of Oscillation Frequencymentioning

confidence: 99%

Principle Experiments Research of Noise in Engine Main Bearing

et al. 2018

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“…Similarly, for the sides of cartilage disc, a free flux condition is also assumed at the perimeter edge [5].…”

Section: Boundary and Initial Conditionsmentioning

confidence: 99%

A coupled contact model of cartilage lubrication in the mixed-mode regime under static compression

Liao

Smith

Miramini

et al. 2020

Tribology International

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“…In Ω s , without external forces and under the assumption of small deformations, the equation of motion is written: where is the stress tensor, defined as # : ( ) with the elastic tensor of the solid part, ( ) the strain tensor and the displacement vector [37].…”

Section: Conservation Lawsmentioning

confidence: 99%