Browse Publications Technical Papers 2024-28-0017

Parametric Solid Meshing of Tires 2024-28-0017

CAE has been a critical tool for efficient tire development with the use of simulation to evaluate durability, drag and other performance metrics. A significant challenge in the process can be the significant amount of time consumed in setting up a tire model. Of late tire suppliers in Japan have been successfully using innovative ideas and tools to reduce this time by as much as 80 percent. The time savings translates to substantial reduction in turnaround time for evaluating new tire designs. They have been using custom CAE software that has inbuilt tools offering many useful features for any tire CAE team. There is a Hex meshing tool that gives the ability for the CAE engineer to generate a ‘pure’ quad mesh pattern across the tire cross-section along with the ability to automatically create a REBAR (internal reinforcement) layer within the tire. Hex meshes are desired for simulation as they offer better quality of results when compared to tetra meshes. The other unique feature in the MeshWorks suite is the ability to parameterize the design and facilitate easy and quick creation of an improved one. Some of the 2D parameters that can be setup include inner radius, outer radius, tread height and rebar thickness. In 3D space, one can also parameterize the height, width of the sections and the space between grooves. By parameterizing these features, one can change the values and the mesh will automatically adapt for the new design. These features are particularly useful when solving hydroplaning concerns with tread changes. Tire development relies on DOE studies to achieve an optimum tire design. Parameterization is a key enabler to achieve accurate and quick DOE results. Because of these features and past successes, there has been a steady appetite for this type of parametric modelling to overcome the challenges of meshing in the tire industry.


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