摘要
在动态测试技术中 ,由于频率观测误差特别是弯曲刚度的影响 ,使得计算的扣索张力有误差 .文章介绍了运用最小二乘原理修正频率并对扣索张力精度进行估计 .结果表明 :频率修正正确 ,索力精度高 。
In the course of tesing technology on line, owing to the frequency error, especially due to the curve rigidity effect, the calculated tension of cables has some errors. This paper introduces the method for correcting the tension of cables by using the principles of Least squares, and it also analyses its accuracy. The results verify that the modificatory technology of the natural frequency is right;the tension of cables accuacy is better and the cables are safe.
出处
《重庆交通学院学报》
2002年第3期87-89,共3页
Journal of Chongqing Jiaotong University
