| 桥梁动位移测试的数字处理方法研究 |
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| 引用本文： | 范术娟,赵维刚.桥梁动位移测试的数字处理方法研究[J].国防交通工程与技术,2011,9(1):15-18. |
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| 作者姓名： | 范术娟 赵维刚 |
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| 作者单位： | 石家庄铁道大学河北省健康监测与控制重点实验室,河北,石家庄,050043 |
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| 基金项目： | 国家863项目，河北省重点基础研究项目 |
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| 摘 要： | 提出了采用MEMS加速度传感器进行动位移测试整体算法框架,即对测量的加速度信号进行板上软件滤波和积分处理进而得到桥梁的动位移.设计了各环节的算法并分析其性能,进行了实际测试的对比研究,成功地处理了天津汉沽蓟运桥现场试验数据.研究表明:采用该传感器进行桥梁动位移测试稳定性好,可靠性高.该研究时桥梁动态监测工作有重要的实用...
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| 关 键 词： | 桥梁动态临测 动位移 数字滤波 积分 |
Digital Signal Processing for the Dynamic Displacement Measurement of Bridges |
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| Fan Shujuan,Zhao Weigang.Digital Signal Processing for the Dynamic Displacement Measurement of Bridges[J].Traffic Engineering and Technology for National Defence,2011,9(1):15-18. |
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| Authors: | Fan Shujuan Zhao Weigang |
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| Institution: | (Key Laboratory of Structural Health Monitoring and Control,Shijiazhuang Tiedao University,Shijiazhuang 050043,China) |
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| Abstract: | An overall algorithm framework is put forward about the use of the MEMS accelerometer for the dynamic displacement in this dissertation,by which we mean that the dynamic displacement of bridges may be gained by digital-filtering and integrating the obtained acceleration signals on board.The calculation methods for various links are designed,the performance of which is analyzed,and the results of which are studied and compared with the really measured ones.The method is successfully used to process the experimental data of the Ji Yun site in Han＇gu,Tianjin.The results show that the use of the MEMS accelerometer for the measurement of the dynamic displacement of bridges has the advantages of good stability,and high reliability.Such research work is of important and practical value to the work of dynamically monitoring bridges. |
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| Keywords: | dynamic measurement of bridges dynamic displacement digital filtering integration |
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