| 整体离心叶轮叶片的振动可靠性分析 |
| |
| 引用本文： | 金向明,高德平,蔡显新,吴立强.整体离心叶轮叶片的振动可靠性分析[J].航空动力学报,2004,19(5):610-613. |
| |
| 作者姓名： | 金向明 高德平 蔡显新 吴立强 |
| |
| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016;中国航空动力机械研究所,湖南,株洲,412002;南京航空航天大学,能源与动力学院,江苏,南京,210016;中国航空动力机械研究所,湖南,株洲,412002 |
| |
| 摘 要： | 述及了整体离心叶轮的结构及其故障模式特点,在强迫振动放大系数模型的基础上提出了离心叶轮叶片的振动可靠性分析方法,结合固有频率灵敏度分析的叶片共振相干分析,通过厚度控制来调整整体叶轮叶片的固有频率,控制强迫振动放大系数使之避开危险性共振或强迫振动,给出了一实际算例,算例及试车试验表明本文方法是有效的。
|
| 关 键 词： | 航空、航天推进系统 离心叶轮 叶片 振动 可靠性分析 |
| 文章编号： | 1000-8055(2004)05-0610-04 |
| 收稿时间： | 2003/12/24 0:00:00 |
| 修稿时间： | 2003年12月24 |
Analysis of Integrated Centrifugal Impeller Blade Vibration Reliability |
| |
| JIN Xiang-ming,GAO De-ping,CAI Xian-xin and WU Li-qiang.Analysis of Integrated Centrifugal Impeller Blade Vibration Reliability[J].Journal of Aerospace Power,2004,19(5):610-613. |
| |
| Authors: | JIN Xiang-ming GAO De-ping CAI Xian-xin and WU Li-qiang |
| |
| Institution: | 1.College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China2.China Aviation Powerplant Research Institut,Zhuzhou412002,China |
| |
| Abstract: | The characteristic of the integrated impeller blade structure and its failure mode is presented.A method for integrated impeller blade resonance reliability analysis based on forced vibration magnifying factor model combined with sensitivity analysis of natural frequency is proposed.Fatal resonance and forced vibration can be avoided by controlling the magnifying factor of forced vibration,and by controlling the natural frequency which is affected by the thickness of the integrated impeller blade.Finally,an example is presented.Compared with succedent test result,it shows that the method presented here is effective. |
| |
| Keywords: | aerospace propulsion system impeller blade vibration reliability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
