大型桥梁结构振动强度监测仿真研究

发布时间：2018-05-30 00:24

本文选题：桥梁结构 + 振动强度　；参考：《计算机仿真》2017年10期

【摘要】：对大型桥梁的振动强度进行监测,能够有效提高桥梁安全系数。对桥梁结构的振动强度监测,需要选择合适的信道和网络标识符,对无线节点进行采集等。传统方法需要对桥梁的重要部位进行监测,进而对桥梁的结构状态进行综合评价,但忽略了对无线节点进行采集等,导致监测精度偏低。提出基于无线传感器系统的大型桥梁结构振动强度监测方法。首先确定汇聚节点,汇聚节点可对周围环境进行自动侦测,可根据需要选择合适的信道和网络标识符,对无线节点进行调理和采集、本地存储,并通过无线网络将数据上传到父节点,由父节点继续上传到根节点,然后由根节点继续远程上传到监控中心。仿真结果表明,基于该无线传感器的结构监测系统具有准确度高、操作方便、实时性好、同步开销低等特点,在大型桥梁结构监测及状态评估领域中有广阔的应用前景。
[Abstract]:Monitoring the vibration intensity of large bridges can effectively improve the safety factor of bridges. It is necessary to select appropriate channel and network identifier and collect wireless nodes for vibration intensity monitoring of bridge structure. The traditional method needs to monitor the important parts of the bridge, and then to evaluate the structure of the bridge, but neglects to collect the wireless nodes, which leads to the low monitoring accuracy. A method for monitoring the vibration intensity of large bridge structures based on wireless sensor system is presented. First of all, the convergence node is determined. The convergence node can automatically detect the surrounding environment, and can select the appropriate channel and network identifier according to the need to adjust and collect the wireless node and store it locally. The data is uploaded to the parent node through the wireless network, and the parent node continues to upload to the root node, and then the root node continues to upload the data to the monitoring center remotely. The simulation results show that the structure monitoring system based on the wireless sensor has the characteristics of high accuracy, convenient operation, good real-time and low synchronization overhead. It has a broad application prospect in the field of large bridge structure monitoring and state evaluation.
【作者单位】：江苏海事职业技术学院电气与自动化工程学院;中交公路规划设计院有限公司;
【基金】：国家国际科技合作专项项目(2015DFG82080) 高性能土木工程材料国家重点实验室开放基金(2016CEM003)
【分类号】：U441.3;U446

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