说明：  针对磨耗性踏面和60kg轨道利用半赫兹算法完成接触斑形状计算，相比传统赫兹算法更加准确符合实际情况
(For the calculation of the tread wear and 60kg semi Hertz algorithm to complete the track contact patch shape, the algorithm is more accurate compared to traditional Hertz realistic)