基于ARMANExT和稳定图方法的飞行器工作模态指示研究
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南京航空航天大学国家重点实验室2015年开放课题(MCMS-0115G01)


Study on the indication of the aircraft operational mode based on ARMANExT and stabilization diagram
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    摘要:

    研究了基于飞行遥测数据,使用环境激励模态辨识方法辨识系统的模态参数时,挑选真实模态的方法.首先,详细介绍了ARMANExT环境激励模态辨识方法的理论.接着,给出了模态指示因素,并详细分析了基于稳定图方法、频域和时频分析方法的真实模态筛选的方法.最后通过算例研究了飞行模态筛选的过程.研究发现,通过该方法得出结果与频域和时频分析结果基本一致.

    Abstract:

    Based on the telemetry data, the technology to select the real modes for the aircraft operational mode derived by ambient excitation is investigated through ARMANExT method in this paper. Firstly, the theory of the ARMANExT method is introduced. Secondly, the mode indication is proposed, and the filter strategy is studied based on stabilization diagram, frequency and timefrequency analysis. Eventually, a case study is carried out. It is found that the identified modes reasonably match with the result of the frequency and timefrequency analysis.

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王亮,张妍,周晓丽,商霖,朱辰,蔡毅鹏.基于ARMANExT和稳定图方法的飞行器工作模态指示研究[J].动力学与控制学报,2016,14(3):258~262; Wang Liang, Zhang Yan, Zhou Xiaoli, Shang Lin, Zhu Chen, Cai Yipeng. Study on the indication of the aircraft operational mode based on ARMANExT and stabilization diagram[J]. Journal of Dynamics and Control,2016,14(3):258-262.

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历史
  • 收稿日期:2014-09-21
  • 最后修改日期:2015-06-13
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  • 在线发布日期: 2016-05-26
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