METHOD OF HEAT TRANSFER COMPUTATION BETWEEN MOLD AND GREEN TIRE

摘要

PROBLEM TO BE SOLVED: To reduce computation time in a heat transfer computation while defining a mold model and a green tire model in a short time.;SOLUTION: A method performs, using a computer, heat transfer computation between a mold having a protrusion for forming a groove and a green tire having a groove formed on the outer surface by the protrusion while being in contact with the mold. The method of heat transfer computation includes the steps of: defining a mold model 21 obtained by discretizing the mold with a plurality of elements in a computer; defining a green tire model 32 obtained by discretizing the green tire with a plurality of elements; and the step where the computer computes the heat transfer through a contact surface 40 between the green tire model 32 and the mold model 21. The mold model 21 is defined including a first part with at least some of the protrusion eliminated. The green tire model 32 includes a second part for embedding a part of the groove corresponding to the first part of the mold model 21. A thermal conductivity of an element of the region including at least the second part of the green tire model 32 is defined to be larger than the thermal conductivity of the region corresponding to the green tire.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2018,JPO&INPIT