| 飞行颤振试验数据处理方法及软件研制 |
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| 引用本文： | 曾庆华,张令弥,张春宁.飞行颤振试验数据处理方法及软件研制[J].航空学报,1994,15(12):1482-1485. |
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| 作者姓名： | 曾庆华 张令弥 张春宁 |
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| 作者单位： | 南京航空航天大学振动工程研究所, 南京, 210016 |
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| 摘 要： | 介绍了用脉冲激振进行飞行颤振试验时的数据处理方法及软件研制。讨论了数据预处理方法和时域、频域参数识别方法。证明了时域和频域方法理论上是等价的,但实际应用中,因频域方法可选频段拟合,识别结果比时域方法好。仿真计算和实际应用结果表明该方法和软件是有效的。
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| 关 键 词： | 颤振 飞行试验 数据处理 脉冲激振 |
| 收稿时间： | 1993-06-19 |
| 修稿时间： | 1994-01-15 |
DATA ANALYSIS AND SOFTWARE DEVELOPMENT FOR FLIGHT FLUTTER TEST |
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| Zeng Qingha,Zhang Lingmi,Zhang Chunning.DATA ANALYSIS AND SOFTWARE DEVELOPMENT FOR FLIGHT FLUTTER TEST[J].Acta Aeronautica et Astronautica Sinica,1994,15(12):1482-1485. |
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| Authors: | Zeng Qingha Zhang Lingmi Zhang Chunning |
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| Institution: | Institute of Vibration Engineering Researeh, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016 |
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| Abstract: | ata analysis methods and software development for the flight flutter test with transj-ent excitations are discussed.The features of the case are briefly introdueed.Emphasis is placed on data preproeessing and parameter estimation in the time domain and frequency domain.It is proved that the method in the time domain is theoretically equivalent to the method in the frequency domain.However,in practical situations,the latter is better than the former.The simulation and practical applications show the feasibility of the proposed procedure and the software. |
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| Keywords: | flutter flight test data analysis transient excitation |
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