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抽油杆失效的主要形式之一是疲劳断裂。多数抽油杆生产企业通过疲劳试验考核产品的疲劳性能。但是试验机频率对疲劳性能的影响，一直存在着争议。文章通过抽油杆疲劳试验中试验频率对疲劳寿命的影响进行了统计分析研究，得出了抽油杆疲劳寿命在２×１０￣６以内试验频率没有明显差异的结论。
One of the main forms of sucker rod failure is fatigue fracture. Most sucker rod manufacturers through the fatigue test to assess the fatigue performance of products. However, the impact of testing machine frequency on fatigue performance has been controversial. Through the statistical analysis of the influence of the test frequency on the fatigue life of the sucker rod fatigue test, the article concludes that there is no significant difference in the test frequency of the sucker rod fatigue life within 2 × 10 ~ 6.