A New Method Based on Matriz Perturbation and Improved Residual Force Vector for Structural Damage Detection

摘要：

In order to improve the accuracy of damage detection result and increase the computational efficiency, a new method for structural damage detection based on the perturbation of frequency and improved residual force vector (IRFV) was studied. The equation of structural damage identification based on the changes of frequency was derived from matrix perturbation theory. And the differences of residual force vector were calculated between damaged and original structure with the same order to form IRFV which was sensitive to damaged elements. The possible damage location was obtained by IRFV preliminarily. Then the damage extent was calculated from the perturbation of frequency which was tested more accurately. The examples prove that the proposed method is efficient and precise for damage detection.

关键词： structural damage identification frequency perturbation improved residual force vector

作者: Wang Bo He Wei

作者单位: School of Water Conservancy and Environment Zhengzhou University Zhengzhou, P. R. China School of Water Conservancy and Environment Zhengzhou University Zhengzhou, P. R. China School of Ci

会议类型: 国际会议

会议名称: 2009 2nd IEEE International Conference on Computer Science and Information Technology(第二届计算机科学与信息技术国际会议 ICCSIT2009)

会议地点: 北京

会议语种:英文

页码: 1377-1380

在线出版日期: 2009-08-08（万方平台首次上网日期，不代表论文的发表时间）