| 压气机进气畸变诱导叶片振动数值研究 |
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| 引用本文： | 张明明,侯安平,王强.压气机进气畸变诱导叶片振动数值研究[J].推进技术,2011,32(4):466-470,503. |
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| 作者姓名： | 张明明 侯安平 王强 |
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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／航空发动机气动热力重点实验室,北京,100191 |
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| 基金项目： | 国家自然科学基金(60934001) |
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| 摘 要： | 介绍了一种考察进气畸变对压气机叶片振动及结构强度影响的流固耦合分析方法。对压气机进行全周数值模拟分析进气总压畸变下转子流场的非定常响应;并结合有限元模型分析叶片模态及振动响应,通过气动模型与结构模型的不断信息迭代实现叶片振动过程的模拟。分析表明,周向总压畸变会引起叶片气动力在周向分布的不均匀及叶片应力波动,导致压气机叶片振动,对其结构稳定性产生重要影响。
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| 关 键 词： | 压气机 总压畸变 振动响应 流固耦合 数值模拟 |
| 收稿时间： | 2010/6/11 0:00:00 |
| 修稿时间： | 2010/11/19 0:00:00 |
Numerical investigation of blade vibration responseinduced by inlet distortion in axial compressor |
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| ZHANG Ming-ming,HOU An-ping and WANG Qiang.Numerical investigation of blade vibration responseinduced by inlet distortion in axial compressor[J].Journal of Propulsion Technology,2011,32(4):466-470,503. |
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| Authors: | ZHANG Ming-ming HOU An-ping and WANG Qiang |
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| Institution: | ZHANG Ming-ming,HOU An-ping,WANG Qiang(National Key Lab.on Aero-engine Aerodynamics and Thermodynamics,Coll.of Energy and Power Engineering,Beijing Univ.of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | The methodology of a fluid-solid coupled approach for the forced response of compressor blades induced by the inlet distortion is presented.The unsteady response of rotor flow field to an inlet total pressure distortion is studied by a CFD model of the entire compressor flowpath,coupled with a finite element model for the blades to identify modal shapes,natural frequencies and the structural deformation.Interaction between fluid and structure is dealt with in a coupled manner,based on the information of exc... |
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| Keywords: | Compressor Total-pressure distortion Vibration response Fluid-structure interaction Numerical simulation |
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