Based on the dynamic analysis of a beam pumping unit - subsurface pump system, and according to the mechanical principle of mechanical system, the system is simplified as an equivalent dynamic model.

• 在对游梁式抽油机-有杆泵系统进行动力学分析的基础上，根据机械系统的力学原理，将整个系统简化为一个等效动力学模型。