The simulation test was completed through two mechanical design cases. The result shows that the algorithm has high efficiency, rapid speed of convergence and strong capability of global search.
最后通过对两个机械优化设计实例进行仿真试验，结果表明本算法求解效率高、收敛速度快、全局搜索能力强。
The test method of pressure loss, flow loss and frictional force loss etc. of the hydraulic pumping units is presented, from which the mechanical efficiency and volumetric efficiency are obtained.
给出了测取液压抽油机系统压力损失、流量损失以及油缸的摩擦力损失等的方法，并由此求出系统的机械效率与容积效率。
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