Assessment of possible application of waterlubricated sintered brass slide bearing for marine propeller shaft

• Autorzy: Litwin W. , Olszewski A.

Identyfikatory

DOI

10.2478/v10012-012-0040-4

• Języki publikacji: EN

Abstrakty

EN

Water-lubricated bearings have been applied to support ship screw shafts for over a hundered years. Development of plastic materials has caused that novel sliding polymers appeared available on the market and being approved by classification institutions, possible to be applied in shipbuilding. However in the subject – matter literature there is no reference to application of bearings fitted with metal or ceramic bushes in shipbuilding. Nevertheless they have important merits such as low resistance to motion, long service life or stability of form. But some doubts are evoked by their large value of shape elasticity module which can lead to local stress concentration at the bush edges in the case of non-axiality of bush and shaft axes. Hence this work has been aimed at the testing of a bearing made of bronze-graphite silter. In the work is presented a comparison of measurement results of resistance to motion , hydrodynamic pressure distributions in lubricating film as well as shaft axis trajectories of the bearing, with those made for a typical elastic polymer bearing. The measurement results have showed high quality of the tested material. In the opinion of these authors it could be applicable to bearing ship propeller shafts.

Słowa kluczowe

EN

bearing; bearing of ship propeller shafts; tribology; water-lubricated bearings

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2012
• Tom: nr 4
• Strony: 54--61
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Litwin W.

• Faculty of Ocean Engineering and Ship Technology Gdansk University of Technology Narutowicza 11/12, 80-233 Gdansk, POLAND

autor

Olszewski A.

• Faculty of Ocean Engineering and Ship Technology Gdansk University of Technology Narutowicza 11/12, 80-233 Gdansk, POLAND

Bibliografia

• 1. Cudny K.: Ship shaft lines (in Polish). Wydawnictwo Morskie Gdańsk (Gdańsk Maritime Publishers), Gdańsk, 1976
• 2. Bugłacki H., Cicholska M., Cudny K.: Problems of ship shaft line rolling bearings (in Polish). Tribologia No.1, 2002, Vol.33
• 3. Roy L. Orndorff, Jr.: Water - Lubricated rubber bearings, history and new developments. Naval Engineers Journal, November 1985
• 4. Litwin W.: Marine water lubricated stern tube bearings – design and operations problems. STLE/ASME International Joint Tribology Conference 07; San Diego, USA
• 5. Litwin W.: Water Lubricated Marine Stern Tube Bearings – Attempt At Estimating Hydrodynamic Capacity. ASME/STLE International Joint Tribology Conference, October 19-21, 2009, Memphis, Tennessee, USA
• 6. Litwin W.: Marine water lubricated main shaft bearings, problems, theoretical and experimental research. Polish Maritime Research No. 4, 2009, Vol. 16
• 7. Olszewski A., Wodtke M., Hryniewicz M.: Experimental Investigation of Prototype Water-Lubricated Compliant Foil Bearings. Key Engineering Materials: Fundamentals of Machine Design,Vol. 490 (2012)
• 8. Olszewski A.: Tilting pad journal bearing with ceramic coating. Automotive and Industrial Lubrication: 15th International Colloquium Tribology: Book of synopses 2006, Stuttgart/ Ostfildern, Germany, January 17-19, 2006
• 9. Litwin W.: Influence of Bearing Bush Geometry on Properties of Water Lubricated Marine Main Shaft Bearings. World Tribology Congress 2009, Kyoto, Japan, September 6 – 11, 2009
• 10. Litwin W.: Influence of Surface Roughness Topography on Properties of Water-Lubricated Polymer Bearings: Experimental Research. Tribology Transactions, 05, 2011.