| 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.[点击复制] |
| Tan Zhiyong,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[点击复制] |
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| 本文已被：浏览 5849次 下载 6060次 |
| 模态试验中非线性检测的一种方法及应用 |
| 谭志勇1, 张东升2 |
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(1.北京强度与环境研究所 北京 100076;2.国防科技大学 航天技术系 湖南 长沙 410073)
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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。 |
| 关键词: 模态分析, 非线性振动, Hilbert 变换 |
| DOI： |
| 投稿日期：1996-09-07 |
| 基金项目: |
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| A Sort of Inspecting Method for Nonlinear Vibration in Structural Model Test and Its Application |
| Tan Zhiyong1, Zhang Dongsheng2 |
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(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. |
| Keywords: modal analysis, nonlinear vibration, Hilbert transformation |
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