Accession Number:

ADA229669

Title:

The Effect of Coatings and Liners on Heat Transfer in a Dry Shaft-Bush Tribosystem

Descriptive Note:

Technical memo.

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s):

Report Date:

1990-08-01

Pagination or Media Count:

22.0

Abstract:

The temperatures due to frictional heating within a solid lubricated or coated journal bearing were analyzed by using a finite element method. A solid model of the shaft-bush tribocontact was generated with an eight-node, three dimensional, first-order isoparametric heat-transfer element and the Patran solid modeler software. The Patmar Patran Marc translator was used to help develop the Marc-based finite element program for the system this software was used on the Cray X-MP super computer to perform a finite element analysis of the contact. The analysis was performed for various liner materials, for thin, hard, wear-resistant coated bearings, and for different geometries and thermal cooling boundary conditions. The analyses indicated that thermal conductivity of the liner or coating material is the most vital thermal parameter that controls the interface temperature. In addition to design variations. The proximity of the cooling source to the heat-flux-generating interface is critically important to the temperature control in the system. TTL

Subject Categories:

  • Machinery and Tools
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE