EXPERIMENTAL RESEARCH ON DAMAGE IDENTIFICATION OF THE CRUDE OIL TANK MODEL

摘要：

According to the basic principle of experimental modal analysis, the modal strains of the vertical steel crude oil storage tank model with doom roof are tested. The ability of identifying the damage degree and location of the model by using the modal parameters is observed. Experimental analysis shows that the more damage of the tank body exists in the same location, the more frequency is reduced, but the relative changing rate of natural frequency is not too obvious. The strain mode shape can give the information of damage location. The frequencies present downtrend as the liquid height inside the model rises. The existing liquid inside the tank has quite small influence on the identification of damage location.

关键词： Steel tank crude oil experimental modal analysis damage location damage degree mode shape difference

作者: C. X. Xu D. H. Xu

作者单位: School of Urban Construction, Yangtze University, Jingzhou, China

会议类型: 国际会议

会议名称: 2007年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 上海

会议语种:英文

页码: 1449-1456

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）