To provide a pneumatic tire simulation method capable of correctly simulating a rib-tear, and also to provide a pneumatic tire evaluation method capable of correctly predicting and evaluating rib-tear resistance performance.SOLUTION: A pneumatic tire simulation method includes the steps of: performing element division of a pneumatic tire having main grooves and land parts and generating a finite element model of the pneumatic tire that can be analyzed by a computer; determining a projection arranged on a road surface and having an edge extending in a predetermined direction; and calculating a strain distribution to be generated on main groove surfaces when one of the finite element model and the projection is rotated by only a return angle β in a rotating direction so as to reduce an angle made by the edge and a tire equatorial line of the finite element model after the finite element model has contact with the edge so as to allow the tire equatorial line to be inclined by an incident angle α with respect to the edge.SELECTED DRAWING: Figure 3
【課題】リブティアを正確にシミュレーションできる空気入りタイヤのシミュレーション方法及び耐リブティア性能を正確に予測及び評価できる空気入りタイヤの評価方法を提供すること。【解決手段】空気入りタイヤのシミュレーション方法は、主溝及び陸部を有する空気入りタイヤを要素分割して、コンピュータで解析可能な空気入りタイヤの有限要素モデルを作成するステップと、路面上に設けられ所定方向に延在するエッジを有する凸部を決定するステップと、タイヤ赤道線がエッジに対して入射角αだけ傾くように有限要素モデルをエッジに接触させた後、エッジと有限要素モデルのタイヤ赤道線とがなす角度が小さくなるように、有限要素モデル又は凸部のいずれか一方を旋回方向に戻り角βだけ回転させたときの主溝表面に発生する歪分布を算出するステップと、を含む。【選択図】図3
PNEUMATIC TIRE SIMULATION METHOD AND EVALUATION METHOD
空気入りタイヤのシミュレーション方法及び評価方法
2019-02-21
Patent
Electronic Resource
Japanese
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