摘要
为了提高索力测试精度,考虑了索的抗弯刚度对索力测量精度的影响,提出了考虑抗弯刚度的索力动力识别方法.首先,给索一定量化的定义;其次,建立了考虑抗弯刚度的物理模型来研究索的振动特性.研究表明,对于索力较小和短索,抗弯刚度对索力测量精度的影响不可忽略;最后给出了索力识别的公式,这些公式有一个简洁的表达式,识别过程简单而且容易实现.
In order to get accurate cable tension, a approach to identify the cable tension considering the bending stiffness are proposed. Firstly, the quantified definition about cable is given. Secondly, a physical model is built to investigate dynamics of the cable. The investigation showed that for low cable tension and short cable the influence of bending stiffness can not be neglected. Finally, the practical formulas are presented. Those are simple formulas for the method and it is easy to apply to practical project.
出处
《陕西科技大学学报（自然科学版）》
2009年第3期165-168,共4页
Journal of Shaanxi University of Science & Technology
关键词
抗弯刚度
索力
动力识别
bending stiffness
cable tension
dynamic identification
