Search results for: marine%20bearings

• Influence of Bearing Bush Geometry on Properties of Water Lubricated Marine Main Shaft Bearings

  Publication

  • W. Litwin

  - Year 2009

  W pracy przedstawiono wpływ geometrii smarowanego wodą, okrętowego łożyska ślizgowego wału głównego na jego własności hydrodynamiczne.Wykazano, że wielkość luzu łożyskowego, położenie oraz liczba rowków smarnych mają znaczący wpływ na nośnosć łożyska.

• Selected Problems of Experimental Testing Marine Stern Tube Bearings

  Publication

  • A. Barszczewska
  • E. Wojtowicz
  • W. Litwin

  - Polish Maritime Research - Year 2019

  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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• MARINE POLLUTION BULLETIN

  Journals

  ISSN: 0025-326X , eISSN: 1879-3363

• Water-Lubricated Journal Bearings Marine Applications, Design, and Operational Problems and Solutions

  Publication

  • W. Litwin

  - Year 2023

  Water-Lubricated Journal Bearings: Marine Applications, Design, and Operational Problems and Solutions provides cutting-edge design solutions, common problems and methods for avoiding them, and material selection considerations for the use of water-lubricated journal bearings in marine environments. These bearings have many advantages, including the absence of the potential for oil contamination. They are also sensitive, and their...

• Influence of local bush wear on properties of water lubricated marine stern tube bearings

  Publication

  • W. Litwin

  - Polish Maritime Research - Year 2011

  W artykule przedstawiono propozycję metody obliczania łożysk ślizgowych smarowanych cieczą o niskiej lepkości (wodą) w których doszło do lokalnego zużycia panwi. Proponowana metoda uwzględnia sprężystą deformację panwi (model EHL) oraz zmianę geometrii będącą wynikiem zużycia.

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• Influence of bush wear in water lubricated marine stern tube bearings with shaft misalignment

  Publication

  • W. Litwin

  - Year 2013

  Water lubricated propeller shaft bearings are frequently employed on modern ships due to their advantages such as durability, simplicity and low price. Specific working conditions on ships cause shaft misalignment which often results in rapid wearing of bush and shaft. Shaft misalignment could be an effect of manufacturing or assembly faults but sometimes it appears due to hull or shaft deformation. The wearing process has influence...

• Wojciech Litwin dr hab. inż.

  People

  Zakład Wyposażenia Okrętu, Institute of Ocean Engineering and Ship Technology

  1992÷1996 - study on Mechanical Department at Gdansk University of Technology1996 – employed in the Faculty of Ocean Engineering and Ship Technology at the Gdansk University of Technology2004 – PhD2014 – habilitation2016 - vice dean for science at Faculty of Ocean EngineeringHe participated in a number of designing and research programs connected with water lubricated bearings, solar technology and modern ship propulsion. Since...

• Marine propeller shaft bearings under low-speed conditions: water vs. oil lubrication

  Publication

  • W. Litwin

  - TRIBOLOGY TRANSACTIONS - Year 2019

  The bearings used in shipbuilding, hydropower, and water pumps have undergone a metamorphosis in recent decades. Because of environmental regulations, lubrication with grease or mineral oil is prohibited. Thus, the standard solutions include water-lubricated bearings with polymer bushings or sealed systems lubricated with oil. When properly designed, assembled, and operated, bearings can operate reliably for years. However, specific...

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• The reuse of brine to enhance the ripening of marine and freshwater fish resistant to marinating

  Publication

  • M. Szymczak
  • K. Felisiak
  • G. P. Tokarczyk
  • B. Szymczak

  - INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY - Year 2019

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• INFLUENCE OF SOLID PARTICLE CONTAMINATION ON THE WEAR PROCESS IN WATER LUBRICATED MARINE STRUT BEARINGS WITH NBR AND PTFE BUSHES

  Publication

  • E. Wojtowicz

  - Polish Maritime Research - Year 2021

  This paper reports on a study of the influence of solid particle contamination on the wear process in water-lubricated slide bearings (steel-acrylonitrile-butadiene rubber (NBR) and steel- polytetrafluoroethylene (PTFE)). To compare the wear of the shaft journal and bushes (NBR and PTFE) when lubricated with fresh water and contaminated water, an experiment was carried out to identify key factors that influence the state of wear...

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