ANALYSIS AND EXPERIMENTAL VERIFICATION OF DYNAMIC CHARACTERISTICS OF OIL FILM THRUST BEARINGS

With the increasing capacity of large marine engines, the axial vibration of a large ship propeller shaft becomes a new problem. In order to solve this, investigation of the dynamic characteristics of thrust bearings is necessary. The authors theoretically analyze the variation of the oil film thickness and the pressure distribution of hydrodynamic thrust bearings under periodical load and verify the results experimentally. In the theoretical calculation, two different methods are used: a strict method, in which the Reynolds equation is solved at every small time interval (nonlinear solution); and an approximate method, using spring and damping coefficients of the oil film (linear solution). The results show that the linear solution method can be applied up to a considerably large amplitude of load. Also, phase delay of the oil film thickness against the load is large, which is verified both analytically and experimentally.

• Corporate Authors:

  Japan Society of Mechanical Engineers

  Shinanomachi Rengakan Building, 5th Floor, Shinanomachi 35, Shinjuku-ku
  Tokyo,   Japan  160-0016
• Authors:
  • Someya, T
  • Fukuda, M
• Publication Date: 1972-8

Media Info

• Features: References;
• Pagination: p. 1004-15
• Serial:
  • JSME Bulletin
  • Publisher: Japan Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Bearings; Lubrication; Oil spills; Propeller shafts; Thickness; Thin films; Thrust bearings; Vibration
• Old TRIS Terms: Bearing lubrication; Oil film thickness; Propeller shaft vibration
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00043588
• Record Type: Publication
• Source Agency: Japan Society of Mechanical Engineers
• Report/Paper Numbers: JSME 15(86)
• Files: TRIS
• Created Date: Apr 13 1973 12:00AM