PROBLEM TO BE SOLVED: To provide a tire ground contact simulation method which reproduces influence due to PCI treatment.SOLUTION: This method includes: a step ST1 at which a tire FEM model, which has a main groove and a land part partitioned by the main groove at a tread part, is acquired; a step ST6 at which inner pressure filling processing for applying an inner pressure in the state that a bead part is arrested and deforming the tire FEM model is executed; a step ST7 at which the tire FEM model is so corrected that a shape thereof after deformation by application of the inner pressure is changed into a shape in the natural state that the inner pressure is not applied; and a ground contact analysis processing step at which a prescribed inner pressure and a prescribed load are applied to the tire FEM model after correction thereby causing the model to contact a road surface, and a ground contact shape and a force generated in a contact area are calculated. In the inner pressure filling processing, all nodal points, which constitute a tread face of the land part, are arrested and an inner pressure is applied (ST4) in the case that there is the land part on a tire equator (ST3: YES), and all nodal points, which constitute tread faces of two land parts adjacent to both sides of the main groove, are arrested and an inner pressure is applied (ST5) in the case that there is the main groove on the tire equator CL (ST3: NO).SELECTED DRAWING: Figure 2

    【課題】PCI処理による影響を再現したタイヤ接地シミュレーション方法【解決手段】主溝及び主溝で区画された陸部をトレッド部に有するタイヤFEMモデルを取得するステップST1と、ビード部を拘束した状態で内圧を付与してタイヤFEMモデル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モデルに修正するステップST7と、修正後のタイヤFEMモデルに所定内圧及び所定荷重をかけて路面に接地させ接地形状及び接地面に生じる力を算出する接地解析処理ステップを含む。内圧充填処理において、タイヤ赤道に陸部がある場合ST3YESには、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しST4、タイヤ赤道CLに主溝がある場合ST3NOには、主溝の両側に隣接する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


    Access

    Download


    Export, share and cite



    Title :

    TIRE GROUND CONTACT SIMULATION METHOD, DEVICE, AND PROGRAM


    Additional title:

    タイヤ接地シミュレーション方法、装置、及びプログラム


    Contributors:

    Publication date :

    2018-05-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung