Active control of fluctuating pressure induced by blade-vortex interaction
文献类型：期刊论文
| 作者 | Zhang MingMing; Xu JianZhong |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 54期号:4页码:862-868 |
| 关键词 | blade-vortex interaction perturbation technique piezo-ceramic actuator closed-loop control |
| 英文摘要 | It is well known that interactions between the leading edge of a blade and incoming vortical structures produce a sharp rise in fluctuating pressure nearby, contributing significantly to the noise production in various types of rotorcrafts. To suppress this fluctuating pressure and subsequently induced noise, as the first step, active control of interactions between an airfoil and incoming cylinder-generated vortices, which mimics the practical phenomenon, was experimentally investigated. The essence of the control is to create a local perturbation, using piezo-ceramic actuators, on the surface near the leading edge of the airfoil, thus modifying the airfoil-vortex interactions. Both open-and closed-loop methods were used, where the surface perturbation was controlled by an external sinusoidal wave and a feedback pressure signal from a pressure transducer installed at the leading edge, respectively. It was observed that the closed-loop control was superior to the open-loop one; the closed-and open-loop controls achieve a maximum reduction in the pressure fluctuation at the dominant vortex frequency by 32% and 11%, respectively. The detailed physics behind the observations was discussed. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | INTERACTION NOISE ; SQUARE CYLINDER ; WAKE ; VIBRATION ; TURBULENT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289736900013 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106526]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang MingMing,Xu JianZhong. Active control of fluctuating pressure induced by blade-vortex interaction[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2011,54(4):862-868. |
| APA | Zhang MingMing,&Xu JianZhong.(2011).Active control of fluctuating pressure induced by blade-vortex interaction.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,54(4),862-868. |
| MLA | Zhang MingMing,et al."Active control of fluctuating pressure induced by blade-vortex interaction".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 54.4(2011):862-868. |
入库方式： OAI收割
来源：工程热物理研究所
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