| 用频域法识别桥梁的模态参数 |
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| 引用本文： | 王兆辉,樊可清. 用频域法识别桥梁的模态参数[J]. 五邑大学学报(自然科学版), 2005, 19(3): 24-28 |
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| 作者姓名： | 王兆辉 樊可清 |
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| 作者单位： | 五邑大学,信息学院,广东,江门,529020 |
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| 摘 要： | 根据大型土木结构环境振动的特点,利用频域法对桥梁的模态参数进行识别,详细阐述了峰值检测法和复模态指示函数法识别桥梁模态参数的理论依据和实现方法,对比了两种方法各自的特点.利用香港汀九大桥的实测数据,辨识出了桥梁的模态参数,最后的辨识结果表明该方法在具体的工程应用中的有效性.
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| 关 键 词： | 模态参数 桥梁 环境激励 频响函数 |
| 文章编号： | 1006-7302(2005)03-0024-05 |
| 修稿时间： | 2004-12-23 |
The Modal Parameters Identification of Bridges in Frequency Domain |
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| WANG Zhao-hui,FAN Ke-qing. The Modal Parameters Identification of Bridges in Frequency Domain[J]. Journal of Wuyi University(Natural Science Edition), 2005, 19(3): 24-28 |
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| Authors: | WANG Zhao-hui FAN Ke-qing |
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| Abstract: | The vibration signals measured from the large civil structures such as bridges are mostly ambient inputs according to this modal parameters identification of bridges in frequency domain. The paper mainly discusses the theories of modal parameters identification of bridge using the Peak Picking method and the Complex Modal Indication Function method in frequency domain and how to put them into practice. The data obtained from the measurement the Ting Kau Bridge in Hong Kong prove the validity of the identification method. |
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| Keywords: | modal parameter bridge ambient input frequency response function |
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