| 基于测试线法的风轮近尾迹辐射噪声研究 |
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| 引用本文： | 高志鹰,汪建文,东雪青,白杨,由志刚. 基于测试线法的风轮近尾迹辐射噪声研究[J]. 工程热物理学报, 2011, 0(2): 219-222 |
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| 作者姓名： | 高志鹰 汪建文 东雪青 白杨 由志刚 |
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| 作者单位： | 内蒙古工业大学能源与动力工程学院;内蒙古自治区可再生能源重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(No.50976047); 内蒙古人才开发基金(No.2007-2009) |
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| 摘 要： | 在风洞开口实验段,针对不同尖速比应用BSWA VS302USB振动噪声采集分析系统对水平轴风力机叶尖下游4个角度的测试线进行噪声测试.叶尖辐射声中的主要成分是叶片的旋转谐波声,其向风轮下游传播的过程中迅速衰减.在各测试线上,随着测点向风轮下游移动,叶轮辐射声迅速衰减,并在一定距离之后低于背景声,尖速比越高,风轮下游辐射...
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| 关 键 词： | 水平轴风力机 噪声 压力脉动 |
ACOUSTIC RADIATION TEST FOR NEAR WAKE OF ROTOR BASED ON TEST LINES |
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| GAO Zhi-Ying WANG Jian-Wen DONG Xue-Qing BAI Yang YOU Zhi-GANG. ACOUSTIC RADIATION TEST FOR NEAR WAKE OF ROTOR BASED ON TEST LINES[J]. Journal of Engineering Thermophysics, 2011, 0(2): 219-222 |
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| Authors: | GAO Zhi-Ying WANG Jian-Wen DONG Xue-Qing BAI Yang YOU Zhi-GANG |
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| Affiliation: | GAO Zhi-Ying~(1,2) WANG Jian-Wen~(1,2) DONG Xue-Qing~(1,2) BAI Yang~1 YOU Zhi-GANG~1 (1.School of Energy and Power Engineering,Inner Mongolia University of Technology,Huhhot 010051,China,2.Inner Mongolia Autonomous Region's Renewable Energy Key Laboratory,China) |
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| Abstract: | In wind tunnel opening,the noise in four test lines was measured by BSWA VS302USB Noise and Vibration Analysis System under different tip speed ratio.The main component of blade tip acoustic radiation is the rotated harmonic sound;it decayed rapidly in the process of spreading to the downstream.In the each test line,with the measuring points moving to the downstream,the acoustic radiation of the wind rotor decayed rapidly,after a certain distances,it is lower than the background noise.The higher is the tip ... |
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| Keywords: | horizontal axis wind turbine noise pressure fluctuation |
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