论文部分内容阅读
根据数理统计推断理论,通过成组对比疲劳破坏试验,用t检验法判断检验具有一定弯曲度的抽油杆试件与直试件是否来自平均值相同的母体。提出抽油杆弯曲度的检验标准。
According to mathematical statistics and inference theory, through the group comparison of fatigue failure test, the t-test is used to judge whether the sucker rod specimen and the straight specimen with a certain degree of curvature come from the same average body. Put forward the test standard of sucker rod bending degree.