| 模态试验中非线性检测的一种方法及应用 |
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| 引用本文： | 谭志勇,张东升.模态试验中非线性检测的一种方法及应用[J].国防科技大学学报,1997,19(3):65-69. |
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| 作者姓名： | 谭志勇 张东升 |
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| 作者单位： | 北京强度与环境研究所(谭志勇)，国防科技大学航天技术系(张东升) |
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| 摘 要： | 本文利用振动信号实部与虚部之间Ｈｉｌｂｅｒｔ关系的原理，发展了它在模态试验中非线性检测技术。针对工程结构的特性采用了快速算法和修正技术，通过火箭风罩证明了它的实用性
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| 关 键 词： | 模态分析，非线性振动，Hilbert变换 |
| 收稿时间： | 9/7/1996 12:00:00 AM |
A Sort of Inspecting Method for Nonlinear Vibration in Structural Model Test and Its Application |
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| Tan Zhiyong and Zhang Dongsheng.A Sort of Inspecting Method for Nonlinear Vibration in Structural Model Test and Its Application[J].Journal of National University of Defense Technology,1997,19(3):65-69. |
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| Authors: | Tan Zhiyong and Zhang Dongsheng |
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| Institution: | 1.Beijing Institute of Structure Environment Engineering, Beijing, 10076;2.Department of Astronautic Technology, NUDT, Changsha, 410073 |
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| Abstract: | In this paper,based on the principle of Hilbert connection for real and imaginary part of vibration signals,the inspecting technique for nonlinear vibration was developed.In accordance with the special characteristics of engineering structure,a sort of fast algorithm and correction technique was used.By application in a fairing of rocket,it was proved practicable. |
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| Keywords: | modal analysis nonlinear vibration Hilbert transformation |
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