| 利用雕鸮羽毛的消音特性降低小型轴流风机的气动噪声 |
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| 引用本文： | 陈坤,刘庆平,廖庚华,杨莹,任露泉,韩志武.利用雕鸮羽毛的消音特性降低小型轴流风机的气动噪声[J].吉林大学学报(信息科学版),2012,42(1):79-84. |
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| 作者姓名： | 陈坤 刘庆平 廖庚华 杨莹 任露泉 韩志武 |
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| 作者单位： | 吉林大学 工程仿生教育部重点实验室,长春 130022 |
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| 基金项目： | 国家自然科学基金项目(30940009,31071928);国家自然科学基金国际合作项目(50920105504);吉林省科技发展计划项目(20090340);吉林大学研究生创新项目(20101017). |
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| 摘 要： | 为降低轴流风机的气动噪声,借鉴了雕鸮羽毛的消音机理,将其羽毛的消音特征以条纹结构和锯齿形态的形式,在轴流风机叶片上进行重构,设计了耦合仿生轴流风机。同时采用试验优化的方法,与原轴流风机进行了模型对比试验,研究了条纹及锯齿参数对风机叶片气动噪声的影响。结果表明,耦合仿生轴流风机具有较低的气动噪声值。在1000、1100、1200、1300和1400 r/min五种转速下,耦合仿生轴流风机的A声级值最大可分别降低4.9、4.5、4.6、4.9和5.8 dB。
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| 关 键 词： | 工程仿生学 降噪 生物耦合 轴流风机 |
| 收稿时间： | 2010-12-10 |
Aerodynamic noise reduction of small axial fan using hush characteristics of eagle owl feather |
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| Institution: | Key Laboratory of Engineering Bionics of Ministry of Education, Jilin University, Changchun 130022, China |
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| Abstract: | To reduce the aerodynamic noise of axial fan, the hush characteristics of eagle owl feather with serration and strip structure was applied to the design of a coupling bionic fan. According to the experimental optimization, contrast experiments on the coupling bionic fan blade and traditional fan blade were carried out. The influence of the bionic serration and strip structure on the aerodynamic noise was studied. The results show that the aerodynamic noise generated by the coupling bionic blade was lower than that generated by the traditional blade. With fan speeds of 1000 r/min, 1100 r/min, 1200 r/min, 1300 r/min and 1400 r/min, the noise can be reduced at most 4.9 dB, 4.5 dB, 4.6 dB, 4.9 dB and 5.8 dB respectively. |
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| Keywords: | engineering bionics noise reduction biological coupling axial fan |
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