An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts-Reference-Cited by-同舟云学术

An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts

Published:1999-09-21 Issue:3 Volume:122 Page:519-523
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Gao Jianqun¹,Lee Si C.¹,Ai Xiaolan²,Nixon Harvey²

Affiliation:

1. Department of Mechanical Engineering, The Ohio State University, Columbus, OH 43210

2. The Timken Company, Canton, OH 44706

Abstract

A transient flash temperature model was developed based on a Fast Fourier Transform method. An analytical expression for the heat partition function was obtained. Together, these substantially increase the speed of flash temperature calculations. The effect of surface topography on the flash temperature was examined. According to the simulation results, the surface with a longitudinal roughness produced a noticeably higher flash temperature than the surface with a transverse roughness. The simulation results also indicate that there is a significant cross-heating activity between the asperities; the temperature profiles appeared surprisingly gradual although their contact pressures had extremely sharp peaks. [S0742-4787(00)04002-9]

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/122/3/519/5820446/519_1.pdf

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