| 基于ARMA-NExT的飞行器工作模态辨识技术研究 |
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| 引用本文： | 王亮,蔡毅鹏,朱辰,廖选平,祝学军.基于ARMA-NExT的飞行器工作模态辨识技术研究[J].导弹与航天运载技术,2017(1). |
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| 作者姓名： | 王亮 蔡毅鹏 朱辰 廖选平 祝学军 |
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| 作者单位： | 1. 中国运载火箭技术研究院,北京,100076;2. 中国运载火箭技术研究院,北京,100076;国防科技大学航天科学与工程学院,长沙,410073 |
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| 基金项目： | 国家重点实验室2015年开放课题，国防技术基础科研项目 |
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| 摘 要： | 基于飞行实测遥测数据,研究了使用工作模态辨识方法辨识飞行器系统的模态参数。详细介绍了ARMA-NEx T工作模态辨识理论基础,梳理了模态辨识的关键步骤和实施方法,最后通过两个算例研究了工作模态辨识。结果表明:第1个算例是针对某一小段时间的遥测数据,辨识系统的模态参数,包括模态频率、阻尼比和振型;第2个算例针对较长时间的遥测数据,辨识系统的模态频率随时间变化的规律。
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| 关 键 词： | 模态辨识 ARMA NExT 工作模态 |
Operational Mode Identification of the Aircraft Based on ARMA-NExT |
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| Wang Liang,Cai Yi-peng,Zhu Chen,Liao Xuan-ping,Zhu Xue-jun.Operational Mode Identification of the Aircraft Based on ARMA-NExT[J].Missiles and Space Vehicles,2017(1). |
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| Authors: | Wang Liang Cai Yi-peng Zhu Chen Liao Xuan-ping Zhu Xue-jun |
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| Abstract: | Based on the telemetry data, the operational mode identification of the Aircraft is investigated under ambient excitation based on ARMA-NExT method. Firstly, the theory of the ARMA-NExT method is introduced. Secondly, the strategy decomposition and implementation are put forward. At last, two examples are studied, one is aim at the operational mode identification for a period of time, include model frequency, damping and shape, and the other is to derive the variation of the model frequency with time. |
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| Keywords: | Mode identification ARMA NExT Operational mode |
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