| 跨声速工况下流体诱发叶片振动研究 |
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| 引用本文： | 李润泽,李琳.跨声速工况下流体诱发叶片振动研究[J].航空动力学报,2008,23(4):747-753. |
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| 作者姓名： | 李润泽 李琳 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100083 |
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| 摘 要： | 对同一跨声速风扇的非定常流场进行了跨声与亚声两种工况下的数值模拟.对两个工况下流场计算得到的转子叶片表面非定常气动激振力进行频谱分析,并对其进行对比分析,从而得到跨声工况下气动激振力特性.应用ANSYS软件的瞬态分析方法进行了叶片的强迫响应分析,对跨声和亚声两种工况下的叶片强迫响应进行对比分析,从而得到跨声工况下叶片强迫响应特性.
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| 关 键 词： | 航空、航天推进系统 叶片 转/静干涉 流场计算 瞬态分析 强迫响应 |
| 文章编号： | 1000-8055(2008)04-0747-07 |
| 收稿时间： | 4/9/2007 12:00:00 AM |
| 修稿时间： | 2007年4月9日 |
An investigation of flow induced blade vibrations at the transonic operating condition |
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| LI Run-ze and LI Lin.An investigation of flow induced blade vibrations at the transonic operating condition[J].Journal of Aerospace Power,2008,23(4):747-753. |
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| Authors: | LI Run-ze and LI Lin |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The unsteady flow field of the same transonic fan at both transonic and subsonic operating conditions was simulated numerically.The periodic unsteady aerodynamic forces of the flow field at both transonic and subsonic operating conditions were analyzed by Fourier Transform Algorithm,and then compared to obtain the unsteady aerodynamic characteristics at tansonic operating condition.The forced response of the rotor blade was analyzed with ANSYS by using the method of transient response analysis.The forced response of the rotor blade between transonic and subsonic operating conditions was analyzed comparatively to find out the characteristics of the forced response. |
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| Keywords: | aerospace propulsion system blade rotor/stator interactions flow field computation transient analytical method forced response |
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