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该文以205/55R16半钢子午线轮胎为参考轮胎,通过建立带纵向和横向简单花纹的轮胎模型,使用ABAQUS/Standard进行了轮胎自由滚动、制动工况的有限元分析,分析了与胎面磨损分布相关的粘着滑移区域随滚动角速度变化的分布情况。结果显示:轮胎在制动状态下,胎面各花纹块沿滑动方向前端出现接触大变形。但由于整体轮胎模型胎面花纹部分网格较粗糙,计算得到的花纹块变形受力分布特征不够准确。为此,采用整体到局部的分析方法,建立采用精细网格的二维平面应变花纹块模型,由整体轮胎模型提供其简化边界条件,使用ABAQUS/explicit进行了滑动的热力耦合有限元分析。结果显示:采用精细网格的局部花纹块模型能反映出滑动前端卷曲大变形以及表面卷曲自接触的变形特征。最后,通过模拟ABS(防抱死制动系统)控制下轮胎胎面花纹块磨损过程,分析了胎面花纹块沿周向的不规则磨损特征。
In this paper, a 205 / 55R16 semi-steel radial tire is taken as a reference tire. By using the ABAQUS / Standard tires model with vertical and horizontal simple patterns, the tire free rolling and braking conditions are analyzed by finite element analysis. Distribution of wear-related stick-slip area with roll angular velocity. The results show that when the tire is in braking state, the tread of the tread is exposed to large deformation along the front of the sliding direction. However, due to the coarser part of the tread pattern of the overall tire model, the calculated stress distribution characteristics of the block deformation are not accurate enough. Therefore, a global to local analysis method was used to establish a two-dimensional plane strain block model with fine grids. The simplified tire boundary conditions were provided by the overall tire model, and the coupled thermal-mechanical finite element analysis using ABAQUS / explicit was performed. The results show that the local block model with fine grids can reflect the deformation characteristics of the large deformation of the sliding front and the self-contact of the surface curl. Finally, by simulating the wear process of the tread under the tread of the tire under simulated ABS (Antilock Braking System), the irregular wear characteristics of the tread in the circumferential direction were analyzed.