| 结构连接刚度损伤的识别方法 |
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| 引用本文： | 王莹,李兆霞,钱方.结构连接刚度损伤的识别方法[J].东南大学学报(自然科学版),2011,41(4):829-835. |
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| 作者姓名： | 王莹 李兆霞 钱方 |
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| 作者单位： | 东南大学土木工程学院,南京,210096 |
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| 基金项目： | 国家自然科学基金资助项目(90715014) |
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| 摘 要： | 通过钢桁架结构系统在模拟连接损伤工况下的动力特性参数测试,基于实测数据分析了各类动力指纹参数对连接刚度损伤识别的效果,提出了一种基于频段相关系数的结构连接刚度损伤识别方法.通过破损方案对比验证了此损伤识别方法的有效性,并利用有限元模拟对该识别方法的适用范围加以探讨.研究结果显示:频段相关系数作为一种新的损伤识别指纹参数...
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| 关 键 词： | 损伤识别 钢桁架结构系统 频响函数 频段相关系数 |
Identification of damage in connecting stiffness of steel structures |
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| Wang Yin,Li Zhaoxia,Qian Fang.Identification of damage in connecting stiffness of steel structures[J].Journal of Southeast University(Natural Science Edition),2011,41(4):829-835. |
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| Authors: | Wang Yin Li Zhaoxia Qian Fang |
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| Institution: | Wang Yin Li Zhaoxia Qian Fang(School of Civil Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | Tests on dynamic characteristics of connecting parts of a steel truss structure under various damage cases were carried out.Based on the measured data of the dynamic characteristics the effects of various dynamic eigen-parameters for damage identification of connecting stiffness in steel structures are analyzed.A new method for identifying damage in connecting stiffness based on frequency band correlation then is proposed.The effectiveness of this method is verified under different damage status,and the ava... |
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| Keywords: | damage identification truss structure system FRF(frequency response function) frequency band correlation |
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