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运用试样测试及数理统计方法 ,对铁路机车车辆弹簧钢进行了试验研究 ,测定了材料试样的疲劳性能参数 ,得到了存活率、置信度为 95 %的 P- S- N曲线和修正的 Goodman疲劳极限线图。
Using the test of the specimen and the method of mathematical statistics, the spring steel of railway rolling stock was tested and the fatigue performance parameters of the material specimen were measured. The P-S-N curve with 95% of the survival rate and the modified Goodman fatigue limit line graph.