| 环境激励下运输类飞机颤振试飞技术研究 |
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| 引用本文： | 霍幸莉,田福礼,裴承鸣.环境激励下运输类飞机颤振试飞技术研究[J].强度与环境,2011,38(1):22-25. |
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| 作者姓名： | 霍幸莉 田福礼 裴承鸣 |
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| 作者单位： | 1. 中国飞行试验研究院,西安,710089
2. 西北工业大学动力能源学院,西安,710072 |
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| 摘 要： | 介绍了两种类型运输类飞机基于自然飞行大气环境激励下的颤振试飞的测试技术、飞行技术、数据分析技术和部分试飞结果.试飞证明虽然利用此类激励获得的结构响应信号幅值较小,但是在多输入多输出系统振型分析基础上,实现了小幅值信号密集模态的准确识别.
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| 关 键 词： | 环境激励 颤振试飞 密集模态识别 振型分析 |
Research on transport airplane flutter flight test by ambient turbulence excitation |
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| Huo Xingli,Tian Fuli,Pei Chengming.Research on transport airplane flutter flight test by ambient turbulence excitation[J].Structure & Environment Engineering,2011,38(1):22-25. |
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| Authors: | Huo Xingli Tian Fuli Pei Chengming |
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| Institution: | Huo Xingli1 Tian Fuli1 Pei Chengming2(1 Chinese Flight Test Establishment,Xi'an 710089,China,2 College of Engine and Energy,Northwestern Polytechnic University,Xi'an 710072,China) |
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| Abstract: | Two transport airplane flight flutter test procedure by ambient turbulence excitation technique,the measurement technique flight maneuver,data analysis method and flight test results are presented in this paper.It is shown that the structure responses have low signal to noise ratio by this excitation,but the closely spaced modes parameters are identified accurately based on MIMO system mode shape analysis. |
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| Keywords: | ambient turbulence excitation flight flutter test closely spaced modes identification mode shape analysis |
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