| 航空发动机涡轮盘振动模态与声模态分析研究 |
| |
| 引用本文： | 赵坚,于明. 航空发动机涡轮盘振动模态与声模态分析研究[J]. 兵工学报, 2010, 0(Z1) |
| |
| 作者姓名： | 赵坚 于明 |
| |
| 作者单位： | 天津城市建设学院;天津大学机械工程学院; |
| |
| 基金项目： | 国家青年科学资助项目(50805099); 中国博士后科学基金资助项目(20090450763) |
| |
| 摘 要： | 从结构振动实模态理论的角度,论述了结构振动与声辐射之间的基本耦合关系;推导了振动结构声辐射模态参数,推导出辐射声压模态。比照振动模态理论,讨论了辐射声压模态参数与振动模态参数之间的关系。对航空发动机涡轮盘进行了实验振动模态分析和实验声模态分析,识别出其振动模态参数和声辐射模态参数。为航空发动机零件的低噪声设计提供了实验数据,也为利用声信号进行振动的间接测量提供了依据。
|
| 关 键 词： | 振动模态 声辐射模态 模态参数 涡轮盘 |
Vibrational and Acoustic Modal Analyses of Gas Turbine Disk in Aeroengine |
| |
| ZHAO Jian,,YU Ming. Vibrational and Acoustic Modal Analyses of Gas Turbine Disk in Aeroengine[J]. Acta Armamentarii, 2010, 0(Z1) |
| |
| Authors: | ZHAO Jian YU Ming |
| |
| Affiliation: | ZHAO Jian1,2,YU Ming1(1.Tianjin Institute of Urban Construction,Tianjin 300384,China,2.School of Mechanical Engineering,Tianjin University,Tianjin 300072,China) |
| |
| Abstract: | The basic coupling relationship between the structural vibration and the acoustic radiation was discussed from the point of view of real modal analysis theory.The acoustic radiation modal parameters of vibrational structure and acoustic radiation pressure modal were deduced.Contrast with the vibration modal theory,the relationship between the radiation modal parameters and the vibration modal parameters was also discussed.Finally,the gas turbine disk in aeroengine was selected as the research object.Its vib... |
| |
| Keywords: | vibration modal acoustic radiation modal modal parameter turbine disk |
| 本文献已被 CNKI 等数据库收录！ |
|
