摘要
索力试验和有限元分析结果表明,悬索跨越结构中,斜拉索的频率与索力具有较好的线性关系,可以利用索力对悬索跨越结构进行健康检测. 提出了利用振动频率测定索力的2 种方法,即标定曲线法和参考频率法,并给出了利用斜拉索力判断管道悬索跨越结构损伤模式和损伤程度的具体方法.
The results of the cable force experiments and the finite element analysis show that the cable forces are linear with the frequencies in the cable-suspended structure of pipelines. Therefore, two methods are given which are calibration curves and frequencies of references to get cable forces by vibration frequencies. And the detailed diagnosing method to estimate damage modes and damage degree of the cable-suspended structure is provided.
出处
《大庆石油学院学报》
CAS
北大核心
2005年第2期95-97,130,共4页
Journal of Daqing Petroleum Institute
关键词
索力
悬索跨越
健康检测
振动频率
cable force
cable-suspended structure
health monitoring
vibration frequency
