| 时域应变模态分析的理论与应用 |
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| 引用本文： | 张开银,刘成林.时域应变模态分析的理论与应用[J].武汉科技大学学报(自然科学版),1995(2). |
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| 作者姓名： | 张开银 刘成林 |
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| 作者单位： | 武汉交通科技大学，武汉钢铁学院 |
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| 摘 要： | 本文以结构应变模态叠加原理为基础，分别以一权无裂缝／带裂缝悬臂梁结构为研究对象，获取结构的应变响应信号，利用ＩＴＤ法进行应变模态分析．试验结果表明：采用该方法，一方面可识别出可靠的结构模态参数，获得结构的动应变／动应力分布；另一方面，其结果可用于结构故障诊断、结构动力修正等研究工作中，具有普遍的指导意义和工程实用价值。
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| 关 键 词： | 模态分析 应变模态 裂缝 |
THE THEORY AND APPLICATION ON TIME DOMAIN STRAIN MODAL ANALYSIS |
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| Zhang Kaiyin, Liu Cheaglin.THE THEORY AND APPLICATION ON TIME DOMAIN STRAIN MODAL ANALYSIS[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),1995(2). |
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| Authors: | Zhang Kaiyin Liu Cheaglin |
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| Institution: | Zhang Kaiyin; Liu Cheaglin |
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| Abstract: | In this paper,based on the superposition principle of strain modes of structure,the strain responses of Perfect of a faulty cantillever beam were used to do experimental strain modal analysis by lbriham Time Domain method. The identified structural modal parameters were reliable and the distributions of the structural dynamic strainl stress were also useful.On the other hand,the results can be used in fault diagnosis of structure and structural dynamics modification in engineering. |
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| Keywords: | modal analysis strain mode cracks |
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