*2.2. Experimental Method*

In this experiment, a brake hub manufactured by the FAW casting company was studied where the brake hub was destroyed, and the sample was prepared. Striped biomimetic samples were used in the experiments as previous research has shown that striped biomimetic samples have better performance/price ratios. The coupling bionic specimen with a non-uniform distribution described in this paper is shown in Figure 3. This was designed as a model with either a two, three, or four parallel offset distribution of a biomimetic unit. Each model in this paper was defined as P2, P3, and P4, and the average distribution of a single cell was defined as P1. To ensure the robustness of the tests, the total number of units on the same sample and the distribution/area ratio between the unit and the parent remained unchanged. Each unit–body combination was arranged in strips with a spacing of 2.4 mm, 3.6 mm, and 4.8 mm. After the design was complete, the laser melting method was used to complete the processing. Thermal fatigue tests were conducted on different unit combinations, and the wear tests were conducted under different thermal fatigue times. The thermal fatigue wear characteristics of different coupled bionic models were studied. Finally, the corresponding model was adjusted based on the wear and fatigue of the brake hub occurring during actual use, and the adjusted and optimized model was retested to verify that the adjustment improved the model.
