Temperature rise due to sliding in rolling/sliding elastohydrodynamic lubrication line contacts: an efficient numerical analysis for contact zone temperatures |
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Authors: | Raj K Pandey Mihir K Ghosh |
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Affiliation: | aMechanical Engineering Department, Institute of Technology, Banaras Hindu University, Varanasi 221-005, India;bPresent address: Research and Engineering Division, Kirloskar Brothers Ltd., Chintan Building, Mukund Nagar, Pune 411-037, India |
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Abstract: | An efficient numerical method based on Lobatto quadrature analysis is adopted for a rigorous analysis of temperature in elastohydrodynamic lubrication (EHL) line contacts. Temperature distributions are calculated for maximum Hertzian pressures and rolling speeds varying between 0.5 to 2.0 GPa and 1 to 30 m/s, respectively. Significant mid-film temperature and surface temperature increases have been observed at higher rolling speeds with an increase in loads and slip ratios. Results have been compared with the results of Manton, S. M., O'Donoghue, J. P. and Cameron, A., Temperatures at lubricated rolling/sliding contacts. Proceedings of the Institution of Mechanical Engineers, 1967–68, 182(417), 813–824. An empirical equation is presented for the prediction of non-dimensional maximum mid-film temperature in the contact zone in terms of the dimensionless thermal loading parameter Q, dimensionless load W and slip S, as: |
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Keywords: | Elastohydrodynamic lubrication Temperature Numerical analysis Numerical methods Polynomials Temperature rise Contact zone temperatures Legendre polynomial Lobatto points Thermal loading parameter |
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