Abstract
The temperature distribution in roller Linear motion (LM) rail surface heated with moving frictional heat source was investigated experimentally and numerically. The operating conditions which had not been regarded by previous research, such as the type of the LM guide and operating temperature, were taken into account for improving the previous model of friction force. Frictional heat generation model and heat partitioning coefficient were proposed to calculate the heat transferred to the LM rail. The numerical solutions were calculated in combining a heat conduction equation and the rate of frictional heat flowing into the rail. Frictional heat generation model and heat partitioning coefficient were verified by comparing experimental and numerical results. Simulation results showed that smaller LM block size or higher velocity leads to the higher temperature distribution in the rail surface. Results also indicated that larger motion stroke results in a lower and wider temperature distribution in the rail surface.
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Recommended by Associate Editor Chang Yong Park
De-Jun Cheng is a Ph.D. candidate in Mechanical Engineering at the Gyeongsang National University. He received a B.S. from Huaihai Institute of Technology in 2011 and an M.S. in Mechanical Engineering from Gyeongsang National University in 2013. His research interests include tribology and heat and mass transfer.
Su-Jin Kim is a Professor of Mechanical Engineering at Gyeongsang National University. He received a B.S. in Agricultural Mechanical Engineering from Seoul National University in 1998 and an M.S. and Ph.D. in Mechanical Engineering from Korea Advanced Institute of Science and Technology in 2000 and 2005, respectively. His research interests include computeraided manufacturing and NC machining simulation.
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Cheng, DJ., Park, JH., Suh, JS. et al. Effect of frictional heat generation on the temperature distribution in roller linear motion rail surface. J Mech Sci Technol 31, 1477–1487 (2017). https://doi.org/10.1007/s12206-017-0247-5
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DOI: https://doi.org/10.1007/s12206-017-0247-5