中文摘要：

应用动量交换理论以及由此推导出的数学模型预测了旋涡风机的性能,包括压头系数、水力效率。此外,还分析了不同叶片厚度和叶片数目对旋涡风机性能的影响。计算结果与文献中实验结果相符。通过此分析,给出了一个最优叶片数目。本文使用Ansys Workbench工具对不同厚度的叶片进行了疲劳分析,提供了可以减轻风机质量并保证机械性能的合理叶片厚度范围。这些结果为未来旋涡风机的设计提供了合理的依据。

英文摘要：

The momentum exchange theory and its derivative mathematical model are used to predict the performance of a blo- wer, including head coefficients and the hydraulic efficiency. In addition, the effect of different blade thickness and blade num- ber on the performance of the regenerative blower is analyzed. The calculating result is conformed to the test result. Also, the pa- per gives an optimum blade number after analysis. Then the fatigue life of blade with different blade thickness is studied using Ansys Workbench, providing blade thickness with a reasonable range to lighten the mass of regenerative blower, and guarantee the performance of the machine. These results can provide reasonable evidence for the regenerative blower design in the future.