Unsteady-state temperature field and sensitivity analysis of gear transmission

Abstract This paper investigated three-dimensional analysis of unsteady-state temperature field and temperature sensitivity analysis of gear transmission, for which frictional heat caused surface temperature rise which reduced their bearing capacity and scuffing resistance. Unsteady-state temperature field of gear surface was analyzed, results providing continuous temperature distribution of any meshing moment and at any position on gear surface. Thermal sensitivity comparison considering different operating conditions and gear geometric parameters was given out. Flash temperature influenced by dynamic load was also provided. The thermal experiment validated the correctness of the model and analysis results. The numerical analysis and calculation results combined with experimental results offered evidence to improve gear scoring and scuffing capacity.

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