RUNNING SIMULATION METHOD FOR TIRE

摘要

PROBLEM TO BE SOLVED: To implement highly precise running simulation on a snow road. SOLUTION: This method contains a step S1 to set a tire model that a tire is modeled in an element capable of analyzing a numerical; a step S2 to set a road surface forming substance model that a road surface forming substance is modeled in an element capable of analyzing a numeral and expressing a change in a volume due to compression and besides substantially permanenting a volume change; and a step S4 or S8 to set a condition that a tire model makes contact with a road forming substance model and effects rolling and effect simulation of the tire by effecting calculation of deformation of the road surface forming substance model each time of micro time increase. The simulation steps contains treatment to effect decision of, whether deformation of the element is effected at a plastic area or an elastic area, by a yield condition based on the invariant of a stress and deviation stress when the element of the road surface forming substance model is pressed together by a tire model.