In situ thermal measurements of sliding contacts |
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| Affiliation: | 1. Department of Mechanical and Nuclear Engineering, Kansas State University, USA;2. Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, USA;1. Department of Mechanics, Mathematics and Management, Politecnico di Bari, V. le Japigia, 182, 70126 Bari, Italy;2. CNR - Institute for Photonics and Nanotechnologies U.O.S. Bari, Physics Department “M. Merlin”, via Amendola 173, 70126 Bari, Italy;3. Imperial College London, Department of Mechanical Engineering, Exhibition Road, London SW7 2AZ, United Kingdom;2. Research & Development, Wärtsilä Finland Oy, PO Box 244, 65101 Vaasa, Finland;1. Tribology Research Institute, Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China;2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou, 730000 |
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| Abstract: | This study examines frictional heating and the associated temperature rise for a sliding circular contact using an in situ thermal micro-tribometer. Observation of the contact temperature used a radiometric approach to measure local temperature at the sliding interface with an emphasis on full field imaging and thermal accuracy. Filled natural rubber samples were slid against optically smooth CaF2 counter-samples. Temperature rise was measured for externally applied normal forces ranging from∼100 to 1000 mN and sliding velocities ranging from∼250 to 1000 mm/s, producing temperature rises between ∼3 and 26 °C. Measured temperature rise was compared to the analytical models of Jaeger, Archard, and Tian and Kennedy for the average temperature rise in sliding contacts. |
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