| 错频叶盘结构振动模态局部化特性分析 |
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| 引用本文： | 王建军,于长波,李其汉.错频叶盘结构振动模态局部化特性分析[J].航空动力学报,2009,24(4):788-792. |
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| 作者姓名： | 王建军 于长波 李其汉 |
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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,北京,100191 |
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| 基金项目： | 国家863计划(2008AA04Z403) |
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| 摘 要： | 利用"错频失谐(Mistuning)"是进行颤振抑制的有效手段,但是否会导致较大叶盘结构振动局部化是需要进一步研究的问题.本文以典型压气机叶盘结构为例,通过引入实际的两种错频失谐方案,分析研究了谐调和"错频失谐"情况下叶盘结构振动模态特性和模态局部化性质.研究表明,"错频失谐"会引起显著的振动局部化,因此实际叶盘失谐设计中需要综合考虑颤振抑制和失谐振动局部化两方面.
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| 关 键 词： | 叶盘结构振动 错频失谐设计 错频叶盘模态局部化 |
| 收稿时间： | 4/5/2008 4:09:04 PM |
| 修稿时间： | 2008/8/12 0:00:00 |
Localization characteristics of vibratory mode for bladed disk assemblies |
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| WANG Jian-jun,YU Chang-bo and LI Qi-han.Localization characteristics of vibratory mode for bladed disk assemblies[J].Journal of Aerospace Power,2009,24(4):788-792. |
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| Authors: | WANG Jian-jun YU Chang-bo and LI Qi-han |
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| Institution: | School of Jet Propulsion;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | It is well known that "deliberate mistuning" in blade design is effective for suppression of the aerodynamic stability(flutter).But the localization characteristics of vibratory mode for bladed disk assemblies with this mistuning are not yet researched deeply.In this paper the vibration characteristics of a typical bladed disk with deliberate mistuning were investigated,with particular regard to the localization characteristics of modal shapes for two mistuning strategies.For the cases considered it is foun... |
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| Keywords: | bladed disk vibration deliberate mistuning in blade design modal localization |
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