PROBLEM TO BE SOLVED: To provide a tire model correction method by which influence due to PCI treatment is suitably reproduced.SOLUTION: This method includes: a step (ST1) at which a tire FEM model M0, which has a main groove 30 and a land part 31 partitioned by the main groove 30 on a tread part 3, is acquired; a step (ST 6) at which an internal pressure charging treatment for applying an internal pressure in the state that the bead part 2 is arrested thereby deforming the tire FEM model M0 is executed; and a step (ST 7) at which a shape after deformation by application of the internal pressure is corrected to a tire FEM model M1 which becomes a shape in a natural state that the internal pressure is not applied. In the case that there is a land part 31 on a tire equator CL in the internal pressure charging treatment (ST3: YES), the internal pressure is applied while arresting all nodal points which constitute a tread surface of the land part 31 (ST4), and in the case that there is the main groove 30 on the tire equator CL (ST3: NO), the internal pressure is applied while arresting all nodal points which constitute tread surfaces of two land parts adjacent to both sides of the main groove 30 (ST5).SELECTED DRAWING: Figure 2
【課題】PCI処理による影響を適切に再現したタイヤモデルの修正方法を提供する。【解決手段】方法は、主溝30及び主溝30で区画された陸部31をトレッド部3に有するタイヤFEMモデルM0を取得するステップ(ST1)と、ビード部2を拘束した状態で内圧を付与してタイヤFEMモデルM0を変形させる内圧充填処理を実行するステップ(ST6)と、内圧の付与により変形した後の形状を、内圧を付与していない自然状態の形状とするタイヤFEMモデルM1に修正するステップ(ST7)と、を含む。内圧充填処理において、タイヤ赤道CLに陸部31がある場合(ST3:YES)には、陸部31の踏面を構成する全ての節点を拘束して内圧を付与し(ST4)、タイヤ赤道CLに主溝30がある場合(ST3:NO)には、主溝30の両側に隣接する2つの陸部の踏面を構成する全ての節点を拘束して内圧を付与する(ST5)。【選択図】図2
TIRE MODEL CORRECTION METHOD, CORRECTION DEVICE, AND PROGRAM
タイヤモデルの修正方法、装置、及びプログラム
2018-05-24
Patent
Electronic Resource
Japanese
ACCELERATION CORRECTION DEVICE, ACCELERATION CORRECTION PROGRAM, AND TIRE STATE DETECTION DEVICE
European Patent Office | 2017
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