| 叶盘系统频率转向与模态耦合特性分析 |
| |
| 引用本文： | 王红建,贺尔铭,赵志彬.叶盘系统频率转向与模态耦合特性分析[J].航空动力学报,2008,23(12):2214-2218. |
| |
| 作者姓名： | 王红建 贺尔铭 赵志彬 |
| |
| 作者单位： | 西北工业大学 航空学院, 西安 710072 |
| |
| 基金项目： | 国家自然科学基金(50775181) |
| |
| 摘 要： | 叶盘系统频率转向现象是系统模态间相互耦合的结果,并在较大程度上影响系统的振动特性.本文以系统模态能量的角度,从叶盘系统特征方程中导出各子模态能量的表达式,并利用集中参数模型,系统地研究了叶盘系统频率转向特性与系统模态中各子模态能量的变化规律.通过研究叶盘模态耦合能量的变化特性,较为全面地分析和总结了系统频率转向与各子模态能量变化之间的内在联系.
|
| 关 键 词： | 叶盘系统 频率转向 模态耦合 模态能量 特性分析 |
| 收稿时间： | 4/10/2008 9:11:05 AM |
| 修稿时间： | 7/16/2008 3:58:54 PM |
Characteristic analysis of frequency veering and mode interaction of bladed disks |
| |
| WANG Hong-jian,HE Er-ming and ZHAO Zhi-bin.Characteristic analysis of frequency veering and mode interaction of bladed disks[J].Journal of Aerospace Power,2008,23(12):2214-2218. |
| |
| Authors: | WANG Hong-jian HE Er-ming and ZHAO Zhi-bin |
| |
| Institution: | School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China |
| |
| Abstract: | Frequency veering in a bladed disk is the result of system mode interaction,which will greatly affect the vibrational characteristics of the system.In view of system modal power,the expressions of various sub-mode powers were derived from the eigenfunction of a bladed disk in this paper.By using a lumped parameter model,the characteristics of frequency veering and variations of sub-mode powers were systematically investigated.While studying comprehensively the variation features of the mode interaction powe... |
| |
| Keywords: | bladed disk frequency veering mode interaction mode power characteristic analysis |
| 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 |
|
