Experimental research on water-lubricated marine stern tube bearings in conditions of improper lubrication and cooling causing rapid bush wear

Litwin, Wojciech; Dymarski, Czesław

doi:10.1016/j.triboint.2015.12.005

Cited by 101 publications

(50 citation statements)

References 15 publications

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“…These losses have an impact on the energy conversion efficiency in these machines and have an impact on the noise [16,19,21,29,30,31,34]. Furthermore, the design parameters of hydraulic components have an influence on energy conversion efficiency [13,14,20,29,32].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Water and Mineral Oil on Volumetric Losses in the Displacement Pump for Offshore and Marine Applications

Śliwiński

2019

Polish Maritime Research

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In this paper, volumetric losses in a positive displacement pump supplied with water and mineral oil are described and compared. The experimental tests were conducted using a prototype of a satellite pump (with a non-circular tooth working mechanism). In this paper, the sources of volumetric losses in this pump are characterized. On this basis, a mathematical model of these losses has been presented. The results of the calculation of volumetric losses according to the model are compared with the results of the experiment. Experimental studies have shown that the volumetric losses in the water pump are even 3.2 times greater than the volumetric losses in the oil pump. It has been demonstrated that the mathematical model describing the volumetric losses both in the water pump and in the oil pump is quite good. It has been found that the results from the loaded pump simulation (at ∆p=25MPa and ant n=1500rpm) differ from the results of the experiment by no more than 5% both for oil and water.

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Section: Introductionmentioning

confidence: 99%

The Influence of Water and Mineral Oil on Volumetric Losses in the Displacement Pump for Offshore and Marine Applications

Śliwiński

2019

Polish Maritime Research

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“…Most of research groups in that time focused on the wear rate, the hardness, and the correlation between them through various experiments such as the high‐speed slurry erosion test. In recent years, researchers focused on the effect of surface microstructure or diverse poor working conditions like sand water‐lubricated conditions on tribological properties of friction pairs and tribological performance of PU …”

Section: Introductionmentioning

confidence: 99%

Study on the tribological properties of modified polyurethane material for water‐lubricated stern bearing

Jiang

Guo

Yuan

et al. 2018

J of Applied Polymer Sci

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Polyurethane (PU) has been studied as alternative bearing material for marine water-lubricated stern tube due to its excellent wear resistance, remarkable mechanical properties and so on. In this study, nine types of PU samples which are composed of different additives were prepared and tested in order to investigate their tribological properties under various working conditions. A pin-on-disc tribo-tester was used to conduct tests. Then comparison analyses were conducted from three aspects, including the friction coefficient, wear mass loss, and the wear surface topography. The analysis results showed that: (1) the different additives as well as the mass fraction of these additives lead to significant difference in terms of tribological properties of PU; (2) the lubricating grease, as one of additives, improved the wear resistance and friction performance effectively; (3) modified PU is eligible to work as matrix because of satisfied mechanical properties and specific internal morphology. It is believed that understandings in this study are beneficial to the improvement of the tribological properties of PU and also provide the real practical basis for the studies of polymer materials which applied on waterlubricated marine stern tube bearing.

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“…The losses have an impact on the energy conversion efficiency in the machines and on the noise emission [11,15,16,18,[24][25][26]28]. Furthermore, the design parameters of hydraulic components have an influence on energy conversion efficiency [8,9,17,21,22,27].…”

Section: Introductionmentioning

confidence: 99%

“…There is a worldwide growing trend towards research and development of components and hydraulic systems supplied with water [2,3,8,9,18,27].…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Water and Mineral Oil On Mechanical Losses in the Displacement Pump for Offshore and Marine Applications

Śliwiński

2018

Polish Maritime Research

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In this paper mechanical losses in a positive displacement pump supplied with water and mineral oil (two liquids having significantly different viscosity and lubricating properties) are described and compared. The experimental tests were conducted by using a prototype satellite pump of a special design. The design of the satellite pump is presented in the article. The pump features and a non-circular tooth working mechanism was developed to work with both water and mineral oil. The sources of mechanical losses in such pump are also characterized in this paper. On this basis, a mathematical model of the losses has been developed and presented. The results of the calculation of mechanical losses according to the model are compared with the results of the experiment. The experimental studies have shown that the mechanical losses in the water pump are even 2.8 times greater than those in the oil pump. It has been demonstrated that the mathematical model well describes the mechanical losses both in the water pump and the oil pump. It has been found that the results from the loaded pump simulation (at Δp=25MPa) differ from the results of the experiment by no more than 5% both for oil and water.

show abstract

Experimental research on water-lubricated marine stern tube bearings in conditions of improper lubrication and cooling causing rapid bush wear

Cited by 101 publications

References 15 publications

The Influence of Water and Mineral Oil on Volumetric Losses in the Displacement Pump for Offshore and Marine Applications

The Influence of Water and Mineral Oil on Volumetric Losses in the Displacement Pump for Offshore and Marine Applications

Study on the tribological properties of modified polyurethane material for water‐lubricated stern bearing

The Influence of Water and Mineral Oil On Mechanical Losses in the Displacement Pump for Offshore and Marine Applications

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