Working state of a screw pump rod-line is analyzed using Finite element analysis method during broken working station, and three kinds of possible mechanical models are set up.

如何降低螺杆泵抽油杆的应力水平，提高工作寿命是石油开采设备研究中一个急需解决的力学问题。

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Working state of a screw pump rod-line is analyzed using Finite element analysis method during broken working station, and three kinds of possible mechanical models are set up.

如何降低螺杆泵抽油杆的应力水平，提高工作寿命是石油开采设备研究中一个急需解决的力学问题。

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