《石油机械》第18卷第10期,1990,第1～10页,图6,表4 论述了在考虑电动机机械特性、周期交变载荷及系统动力参数等影响下的抽油机真实运动规律的分析计算问题。建立了有杆抽油泵等效动力学模型,列出了运动微分方程式,并采用预测-校正数值法求解。编制了相应的电算程序。算例表明,因曲柄和电动机转速有较大的波动,以曲柄作匀速转动进行的运动分析,有时会产生很大的误差。 Oil Machinery ", Vol. 18, No. 10, 1990, pp. 1-10, Figure 6 and Table 4, discuss the law of the real movement of the pumping unit under the consideration of the mechanical characteristics of the motor, the periodic alternating load and the system dynamic parameters Analysis and calculation of the problem. The equivalent dynamic model of sucker rod pump is established. The differential equations of motion are listed and solved by the predictive - corrective numerical method. Compiled the corresponding computer program. The example shows that due to the large fluctuation of crank and motor speed, the motion analysis with crank for uniform rotation can sometimes produce a great error.