| 数字滤波在钢桥应力监测信号处理中的应用 |
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| 引用本文： | 杨光,万红,李洪波. 数字滤波在钢桥应力监测信号处理中的应用[J]. 河南科学, 2010, 28(1): 71-73 |
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| 作者姓名： | 杨光 万红 李洪波 |
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| 作者单位： | 同济大学桥梁工程系,上海,200092;河南省电力勘测设计院土建室,郑州,450007;河南省电力勘测设计院土建室,郑州,450007 |
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| 摘 要： | 根据钢桥应力监测实际特点,利用MATLAB数字滤波工具,设计了巴特沃斯低通数字滤波器;总结了数字滤波器中各参数对钢桥应力监测信号滤波效果的影响,最后设定合理滤波参数,对钢桥应力监测信号进行数字滤波,获得了较好的效果,提高了钢桥疲劳剩余寿命评估的精度.
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| 关 键 词： | 钢桥 应力监测信号 巴特沃斯低通滤波器 疲劳剩余寿命评估 |
Application of Digital Filter in the Signal Disposal of Steel Bridge Stress Monitoring |
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| Yang Guang,Wan Hong,Li Hongbo. Application of Digital Filter in the Signal Disposal of Steel Bridge Stress Monitoring[J]. Henan Science, 2010, 28(1): 71-73 |
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| Authors: | Yang Guang Wan Hong Li Hongbo |
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| Affiliation: | 1. Department of Bridge Engineering, Tongji University, Shanghai 200092, China;2. Civil Department, Henan Electric Power Surver ＆ Design Institute, Zhengzhou 450007, China) |
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| Abstract: | From the specialty of steel highway bridge stress monitoring, design a Butterworth low-pass filter using digital filter tool in MATLAB. The influences to the efficiency of digital filter are induced for the changes of parameters in the digital filter. Reasonable filter parameters are designed and obtain good effect in the digital filter to the stress monitoring signal, thus advance the precision of steel bridge remained fatigue life assessment. |
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| Keywords: | steel bridge stress monitoring signal Butterworth low-pass filter fatigue remained life assessment |
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