Wedge impact blade of impact cutting coal machine was designed and its working process was stimulated.
本文通过对冲击采煤机冲击刀具的设计及其参数的研究，设计了较为合理的楔形冲击刀具。
It has been found that wake loss of the blade has a great impact on the performance and stability of Turbomachinery, and also has been recognized as one of main noise sources of Turbomachinery.
尾迹损失对叶轮机械的工作效率和运行稳定性有很大影响，也是叶轮机械主要的噪声源之一。
Effects of rotation speed on the impact process and results are pointed out by the analysis of structural plastic dynamic response and blade deformation.
通过对结构塑性动力学响应和叶片变形过程的分析，指出了叶片断裂时的不同转速对撞击过程及结果的影响。
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