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基于特征系统实现算法的天线类产品在轨模态辨识方法研究 被引量:2

Research on the Modal Identification Method of Antenna Products on Orbit Based on Eigensystem Realization Algorithm
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摘要 采用系统实现算法(ERA)对航天器大型薄壁结构进行基于响应的时域模态参数辨识。阐述了该算法的基本原理和具体实现过程。仿真和试验结果表明,ERA辨识算法可靠,精度能够达到设计要求。 Eigensystem realization algorithm(ERA)was uesd for the modal identification of large antennas in orbit.The basic principle and realization process of the algorithm were expounded.Simulation and test results show that the algorithm is reliable,and the accuracy can meet the design requirements.
作者 成玫 蒋敏 CHENG Mei;JIANG Min(School of Mechanical Engineering,Shanghai Institute of Technology,Shanghai 201418,China)
出处 《应用技术学报》 2018年第2期168-172,共5页 Journal of Technology
基金 上海应用技术大学引进人才基金(YJ2016-18)项目资助
关键词 航天器 低频密集模态 模态参数辨识 特征系统实现算法 spacecraft low and dense mode frequency modal parameter identification eigensystem realization
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