A Structural Damage Alarm Index Based on the Statistical Probability of Abnormal Frequency Offset
Yan Sheng Song, Zong Guang Sun, Li Ye Sun · Applied Mechanics and Materials · 2012
Based on the statistical probability of abnormal frequency offset, this paper puts forward a new structural damage alarm index. Demonstrating the feasibility of corresponding structural damage alarming method, this article introduces the index to analize a steel frame structure in frequency domain. The results show the abnormal index defined in sense of statistics indicates the abnormity of corresponding test cases clearly.