To provide a tire rolling motion simulation method which makes a whole circumference of a tire to contact a road surface, in which calculation costs are reduced while suppressing deterioration in analysis accuracy.SOLUTION: A tire three-dimensional shape FEM model, in which at least parts of a node point and of an element at a side RD2 closer to inside in a tire radial direction than an element boundary line L1 passing, along a tire thickness direction, on a rim contact point at an outermost side RD1 in the tire radial direction in a bead part 3 are deleted, is acquired (a step ST1); a constraint condition for prohibiting displacement in the tire radial direction is set for the node point adjacent to the element deleted in the bead part 3 of the tire three-dimensional shape FEM model (a step ST2); and under an analysis condition including the restraint condition, rolling motion processing, in which the whole circumference of a tread in the tire three-dimensional shape FEM model is made to contact a prescribed road surface to calculate a physical amount generated in the tire three-dimensional shape FEM model, is executed.SELECTED DRAWING: Figure 3
【課題】解析精度の低下を抑制しつつ計算コストを低減させた、タイヤのトレッド全周を路面に接地させるタイヤの転動シミュレーション方法を提供する。【解決手段】ビード部3において最もタイヤ径方向外側RD1にあるリム接触点をタイヤ厚み方向に沿って通過する要素境界線L1よりもタイヤ径方向内側RD2の節点及び要素の少なくとも一部が削除されたタイヤ三次元形状FEMモデルを取得し(ステップST1)、タイヤ三次元形状FEMモデルのビード部3における削除された要素に隣接する節点に対し、タイヤ径方向の変位を禁止する拘束条件を設定し(ステップST2)、拘束条件を含む解析条件のもと、タイヤ三次元形状FEMモデルのトレッド全周を所定路面に接触させ、タイヤ三次元形状FEMモデルに生じる物理量を算出する転動処理を実行する。【選択図】図3
TIRE ROLLING MOTION SIMULATION METHOD, SYSTEM AND PROGRAM
タイヤの転動シミュレーション方法、システム及びプログラム
2020-02-20
Patent
Electronic Resource
Japanese
Simulation of Dynamically Rolling Tire
Online Contents | 2000
|TIRE SIMULATION METHOD, PROGRAM AND TIRE SIMULATION DEVICE
European Patent Office | 2021
|Simulation of a Dynamically Rolling Tire
British Library Conference Proceedings | 1999
|TIRE SIMULATION METHOD AND COMPUTER PROGRAM FOR TIRE SIMULATION
European Patent Office | 2015
|