| 桥梁动挠度计算速度积分方法 |
| |
| 引用本文： | 吴康雄,张红光.桥梁动挠度计算速度积分方法[J].长沙理工大学学报(自然科学版),2009,6(1):15-18. |
| |
| 作者姓名： | 吴康雄 张红光 |
| |
| 作者单位： | 长沙理工大学,汽车与机械工程学院,湖南,长沙,410004 |
| |
| 基金项目： | 湖南省科技厅科研攻关资助项目 |
| |
| 摘 要： | 提出数值积分的方法，利用二次插值法把两个采样周期的速度值拟合成速度函数，对此速度函数在第一个采样周期内进行定积分，获得桥梁在此时间段内的振动位移．该方法实现了从磁电式速度传感器中导出桥梁的动挠度信号．试验结果表明，该积分方法具有较高的实时性和准确性．
|
| 关 键 词： | 模拟积分 数值积分 二次插值 动挠度测量 磁电式速度传感器 |
The calculation of dynamic deflection from bridge measuring velocity |
| |
| WU Kang-xiong,ZHANG Hong-guang.The calculation of dynamic deflection from bridge measuring velocity[J].Journal of Changsha University of Science and Technology:Natural Science,2009,6(1):15-18. |
| |
| Authors: | WU Kang-xiong ZHANG Hong-guang |
| |
| Institution: | School of Automobile and Mechanical Engineering;Changsha Universityof Science and Technology;Changsha 410004;China |
| |
| Abstract: | A numerical integration method is presented and the velocity function is deduced using quadratic interpolation smoothing in two sampling periods and integrated in the first sampling period.The dynamic deflection of bridge can be obtained in this period.Dynamic deflection is deduced from the signal of inertial transducer using the method.The experiment results show that the integration has the characteristics of being more real-time and accurate. |
| |
| Keywords: | analog integration numerical integration quadratic interpolation bridge dynamic deflection measurement inertial electro magnetic sensor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
