装载机轴流风扇的气动声学性能优化与分析  

The optimization and analysis of aerodynamic acoustic performance of the axial flow fan used in loader

作　　者：张士伟[1] 陈长征[1] 周勃[2] 

机构地区：[1]沈阳工业大学机械工程学院,沈阳110870 [2]沈阳工业大学建筑工程学院,沈阳110870

出　　处：《重型机械》2015年第5期59-62,共4页Heavy Machinery

基　　金：中国博士后科学基金(2014M560220);国家科学支撑计划(2013BAF07B04)

摘　　要：叶尖间隙是影响风扇的效率和噪声重要因素之一,选择合适的叶尖间隙,对降低风扇噪声和保障风扇效率有重要意义。针对某轴流冷却风扇,利用流体分析软件Fluent对冷却风扇进行了流场仿真分析和优化,研究了叶尖间隙对气动噪声的影响规律。结果表明,当叶尖间隙为7 mm时,风扇降噪效果理想,在保证风扇冷却性能的基础上,较明显降低了风扇噪声。仿真结果与实验结果一致,从而证明该优化方案是可行的。As the tip clearance is an important factor for the efficiency and noise of the fan, selecting appropri-ate tip clearance is important. For the axial flow fan, in this paper, the fan＇ s fluid field is analyzed and its pa-rameter is optimized by fluent analysis software. The effect of tip clearance on aerodynamic noise is also re-searched. The simulation results show that de-noising achieve an ideal effect when the tip clearance value is7mm. The simulation results are in agreement with the experimental results, it proves that optimization schemeis useful and effective.

关 键 词：装载机 叶尖间隙 轴流风扇 气动噪声 

分 类 号：TH432.1[机械工程—机械制造及自动化]