2019
DOI: 10.2478/pomr-2019-0034
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Selected Problems of Experimental Testing Marine Stern Tube Bearings

Abstract: This paper presents typical methods for conducting experimental tests on main shaft slide bearings. There are described their possible testing capabilities, advantages, drawbacks and limitations. Various testing methods were analyzed to find a solution able of providing a wide range of possible investigations at possibly acceptable limitations.

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Cited by 6 publications
(4 citation statements)
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“…It has been stated that bearings design parameters (radial clearance, L/D ratio, eccentricity ratio) and bushing material properties significantly affect the tribological performance of WLJB [1][2][3][4][5][6]. In this section, the effect of bearing length to diameter (L/D)…”
Section: The Effect Of L/d Ratiomentioning
confidence: 99%
See 1 more Smart Citation
“…It has been stated that bearings design parameters (radial clearance, L/D ratio, eccentricity ratio) and bushing material properties significantly affect the tribological performance of WLJB [1][2][3][4][5][6]. In this section, the effect of bearing length to diameter (L/D)…”
Section: The Effect Of L/d Ratiomentioning
confidence: 99%
“…Generally, for water-lubricated journal bearing, rubber's (PTFE, PEEK, PI, NBR) is used as a bushing material due to its excellent wear and frictional characteristics, lesser noise, low operation and maintenance cost [3]. However, due to low viscosity of water, water-lubricated journal bearing unwillingly meets the mixed-lubrication condition during start and shut-down of marine ships [4,5]. During start and shut-down conditions, fluid film thickness is not sufficiently thick enough to separate the bushing and shaft surfaces.…”
Section: Introductionmentioning
confidence: 99%
“…The openings in the bearing, in which the temperature sensors were placed, were of a depth that allowed the thermocouple tip to be positioned 3 mm under the sliding surface of the bush. Type K thermocouples with an exposed junction of Ø 0.8 mm in diameter were employed, allowing, in the opinion of the author, for relatively quick recording of sudden temperature changes, which is especially significant in recording dynamic temperature changes [48].…”
Section: Test Rigmentioning
confidence: 99%
“…However, such agents are not stable enough to achieve a sufficient effect on the surfaces of bearings; an acceptable lubrication is a combination of many contributing factors [3]. Problems related to premature wear of the aft stern bearings are reflected in many publications and are related to their lubrication [4], [5] as well as factors influencing the efficiency of this lubrication, such as vibrations [6], [7] or the dynamics of the shaft movement [8], [9].…”
Section: Introductionmentioning
confidence: 99%