Abstract
Based on analysis of papers published, a project for special ultra long stroke oil pumping unit used carbon fiber continuous sucker rod was put forward. Considering the variation of rotating speed of electromotor, the equivalent dynamics model of oil pumping unit and the longitude vibration model of the carbon fiber sucker rod were developed here. Because of the super coupling of the two models, equations must be united and the correct solution by iterating was derived. By comparison, it is proved to be of good results and bright application future.
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