The test results and the analysis conclusion have important value for the development of the fatigue design of units, the equipment maintenance, and the measuring system.
其测试结果与分析结论对于机组疲劳设计、设备维护和测试系统开发有重要意义。
The results of the analyses show that high residual compressive stress and fine scattered martensite units are the main cause of improving fatigue properties.
分析表明，高幅值的残余压应力和“有效晶粒”细化是提高弯曲疲劳性能的主要因素。
The author asserts that the examples of calculation Show a somewhat low fatigue strength for the crankpin of CYJ10—3—53B pumping units.
通过计算举例，指出CYJ10—3—53B型抽油机存在曲柄销疲劳强度偏低的问题。
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