At last the article summarize FEA simulation results in some points and explain methods for determining best spin testing speed of impeller.

总结了叶轮最佳超速转速的确定方法，以确定经有限元分析的实际叶轮的最佳超速转速。

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Testing equipment: hydraulic torque tester, speed device, spin Boom.

检测设备：油压扭力测试仪、转速仪、旋臂架。

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