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]
An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts
Contributed by the Tribology Division for publication in the JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 5, 1999; revised manuscript received September 21, 1999. Associate Technical Editor: T. Lubrecht.
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Gao , J., Lee, S. C., Ai , X., and Nixon, H. (September 21, 1999). "An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts ." ASME. J. Tribol. July 2000; 122(3): 519–523. https://doi.org/10.1115/1.555395
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