tacitron

Connecting with the improved process of the wall mounted air-conditioner manufacturing,the article analyzes the blade passing frequency noise and the vortex noise of the cross-flow fan.

结合挂壁式空调制造工艺改进实践,分析了贯流风机旋转噪声和涡流噪声产生原因,并通过噪声品质分析、参数优化设计等试验研究,提出了选择合理的技术参数、进行蒸发器风道、叶轮等工艺结构改进等降低噪声的技术措施,实现了较为理想的降噪效果。

The vortex shedding noise model for the fan and the model for the blade tail-edge vortex noise induced by the interaction between the air flow and the k th section have been developed.

通过将掠形叶片沿径向分为N个叶元体，推导了第k叶元体与气流相互作用诱发的叶元体尾缘涡流噪声模型与轴流风机的涡流脱落声学模型，通过实验验证了理论模型的正确性，并分析了叶轮结构参数与涡流脱落噪声的关系。

Experimental study on reducing turbulence noise of centrifugal fan by equipped metal net masks;

金属网罩降低离心风机紊流噪声试验研究