| 基于MIMO系统的桥梁颤振导数识别法研究 |
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| 引用本文： | 吕梁胜,孟庆兵,栗涛.基于MIMO系统的桥梁颤振导数识别法研究[J].西部交通科技,2011(2):42-47. |
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| 作者姓名： | 吕梁胜 孟庆兵 栗涛 |
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| 作者单位： | 广西大学土木建筑工程学院,广西,南宁,530004 |
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| 基金项目： | 国家自然科学基金，广西科学研究与技术开发计划项目 |
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| 摘 要： | 文章基于高斯脉冲激励理论,建立了MIMO系统气动力模型,提出了一种通过N4SID方法进行系统辨识,识别不同折算风速下颤振导数的新方法,并以典型桥梁断面为例进行颤振导数的仿真识别研究,证明了该识别方法的可靠性和有效性。
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| 关 键 词： | MIMO系统 颤振导数 识别 研究 |
Study on Flutter Derivative Identification Method Based on MIM0 System |
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| LV Liang-sheng,MENG Qing-bing,LI Tao.Study on Flutter Derivative Identification Method Based on MIM0 System[J].Western China Communication Science & Technology,2011(2):42-47. |
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| Authors: | LV Liang-sheng MENG Qing-bing LI Tao |
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| Institution: | LV Liang-sheng,MENG Qing-bing,LI Tao(College of Civil Engineering,Guangxi University,Nanning,Guangxi,530044) |
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| Abstract: | According to Gaussian Impulse Excitation theory,the article builds a MIMO system aerodynamic force model.It proposes to use N4SID method to perform system identification and calculate the rattling index under different wind speed.Taking typical bridge deck as example,the rattling index simulation study is performed and the reliability and efficiency of this method is proved. |
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| Keywords: | MIMO system Flutter Derivative Identify Study |
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