期刊
TIRE SCIENCE AND TECHNOLOGY
卷 49, 期 1, 页码 39-54出版社
TIRE SOC INC
关键词
deformation index; rolling resistance; nonlinear finite element analysis
Tire rolling resistance is crucial for a vehicle's fuel consumption and can be optimized through advanced materials processing, new technologies, and innovative tire design. Effective distribution of the contributor of rolling loss is necessary for achieving optimal rolling resistance, with different deformation states contributing to the loss in varying ways. A novel approach for optimizing tire rolling resistance using a nonlinear finite element method has shown significant improvements in reducing rolling resistance.
Tire rolling resistance plays a vital role in a vehicle's fuel consumption. which needs to be continuously optimized. Such targets can be met only through the combination of advanced processing of materials and new technologies together with innovative tire designs. Achieving the optimal rolling resistance of a tire requires effective distribution of the rolling loss contributor (i.e., the resultant of the modulus, volume, and dissipation). The contribution of the three tire deformation states (e.g.. equal strain, equal stress, and equal energy) on the tire's rolling loss vary with the modulus. As proposed in the literature[1-3]. the deformation index has proven to be a useful tool for identifying different states of deformation in the tire. This approach is explored in this article. Within the context of the nonlinear finite element method, a novel approach is proposed for optimization of tire rolling resistance. The proposed approach is implemented on both passenger car and commercial vehicle tires, including cross-ply tires. As a result of this concept, up to 10% improvement in rolling resistance has been achieved, depending on the chosen tire. The developed procedure has been implemented in the commercial finite element simulation tool Abaqus and hence can be directly used as a design tool for any tire the during predesign phase itself.
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