New Mathematical Models for the Load Factor of Slip Pairs of the Ship Propulsion Complex for Non-newtonian Lubricants

The method of boundary variation was applied to the solution of the boundary value problem with respect to the Reynolds differential equation for the lubricating layer in the sliding bearings of ship power plants and auxiliary ship equipment, which made it possible to obtain analytical representations for the hydrodynamic pressure, shear stresses, as well as the integral characteristics of the lubricating layer. This made it possible to build new, easy-to-use mathematical models for the load factor (carrying force factor) of the sliding pairs of the ship propulsion complex, considering the non-Newtonian properties of lubricants, i.e. in the case of the dependence of dynamic viscosity on pressure and temperature. Mathematical models take into account geometric parameters of bearings, operational parameters: relative radial clearance and relative eccentricity, angular velocity; as well as viscosity characteristics of lubricants, in particular, dynamic viscosity and piezo coefficient of viscosity of lubricants. A criterion for the applicability of lubricants for given operating characteristics and bearing parameters has been developed, which uses the viscosity characteristics of lubricants. The research results are illustrated in the form of tables and graphs.

• Record URL:
  • https://doi.org/10.31217/p.38.1.9
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13320718
• Supplemental Notes:
  • Abstract reprinted with permission from the Faculty of Maritime Studies of the University of Rijeka.
• Authors:
  • Kryvyi, Oleksandr
  • Miyusov, Mykhaylo
  • Kryvyi, Mark
• Publication Date: 2024-6-28

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 12p
• Serial:
  • Pomorstvo, Scientific Journal of Maritime Research
  • Volume: 38
  • Issue Number: 1
  • Publisher: University of Rijeka, Croatia
  • ISSN: 1332-0718
  • EISSN: 1846-8438
  • Serial URL: http://hrcak.srce.hr/pomorstvo?lang=en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Load factor; Lubricants; Mathematical models; Propulsion; Ships
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01923967
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 11 2024 1:52PM