| 结构模型实验中模态频率的识别及推算 |
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| 引用本文： | 林子臣,方鄂华.结构模型实验中模态频率的识别及推算[J].烟台大学学报(自然科学与工程版),1994(3):53-58. |
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| 作者姓名： | 林子臣 方鄂华 |
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| 作者单位： | 烟台大学，清华大学 |
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| 摘 要： | 利用实验与分析方法，对Ｒ／Ｃ原型结构进行了模态频率计算，之后对１／１８微粒砼缩比模型未加模拟质量前做了破击试验，据此分析了由计算、敲击结果去推算模型配模拟质量后的频率特性的方法。推算结果和由振动台输入的白噪声所识别的频率值做了对比验证，表明具有较好的准确性且简便易行。
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| 关 键 词： | 模态识别 频率推算 结构模型实验 |
Identificaton and Calculation of Mode Frequency in Structural Model Experiment |
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| Lin Zichen,Fang Ehua.Identificaton and Calculation of Mode Frequency in Structural Model Experiment[J].Journal of Yantai University(Natural Science and Engineering edirion),1994(3):53-58. |
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| Authors: | Lin Zichen Fang Ehua |
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| Institution: | Lin Zichen;Fang Ehua(Yantai University)(Tsinghua University) |
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| Abstract: | The mode frenquency of R/C structures had been calculated by means of experiment and anal-ysis,then beating tests have been conducted on a fine aggregate concrete medel with 1/18 scalewithout sim ulating mass.Based on these,the calculation method of frequency characteristics ofmodels with simulating mass is analyslzed.Calculation result is compared with the test results obtainfrom shaking table tests with white noise artificial wave,and it shows that the calculation result pos-sesses better accuracy convenience and is valuable in practical use. |
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| Keywords: | Scale model Mode identification Frequency calculation |
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