Evaluation of flash temperature of helical gear teeth

Simon in 1988 used an elaborate theoretical approach to obtain 3-D flash temperature distribution of tooth surface of helical gear. His method appears to be inconvenient in engineering design. In this paper, a more accurate and still convenient method for the flash temperature of helical gear teeth is presented. The load distributions on tooth contact lines are obtained by using 3-D finite element method and mathematical programming technique. Then the relative velocities and curvature radii of nodes on tooth meshing surface are calculated.