Single pass rub phenomena - Analysis and experimentAn experimental and analytical investigation is presented of contact phenomena for the case of a fully-dense copper gas path seal segment which is rubbed by a single steel blade tip at room temperature. The experiments were executed on a pendulum-type test device, with forces, rub energy, surface temperature and residual deformation being determined for each single-path rub test. The thermal and mechanical factors influencing single-pass rub surface temperatures were modeled analytically. It is found that large plastic strains occurred on or near the contact surface of the copper rub specimens. A study of the influence of various material properties on surface temperature showed that increased thermal conductivity of the stationary component played a role in lowering contact temperatures. Increased thermal conductivity of the moving blade tip component and increased thermal diffusivity of the stationary material also had a beneficial effect.
Document ID
19820034914
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kennedy, F. E. (Dartmouth College Hanover, NH, United States)
Date Acquired
August 10, 2013
Publication Date
October 1, 1981
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 81-LUB-55
Meeting Information
Meeting: Joint Lubrication Conference
Location: New Orleans, LA
Start Date: October 5, 1981
End Date: October 7, 1981
Sponsors: American Society of Mechanical Engineers and American Society of Lubrication Engineers