海洋平台结构损伤识别新方法仿真研究

NEW METHOD RESEARCH FOR STRUCTURAL HEALTH MONITORING OF OFFSHORE PLATFORMS

提出了识别海洋平台结构损伤分两步走的方法,采用任意两阶频率比的方法识别海洋平台构件损伤类型,提出了一种区分对称位置相同构件损伤的相对总位差法。方法同时能够识别损伤的程度。

The recognition of the offshore platform structure damage divides the method with two steps first, it uses two orders frequencies ratio method to distinguish the offshore platform components damage; Second, because the same component damage in the symmetrical position is not to be able to distinguish, one kind of new method, relative total displacement law,to discriminate same component damage in the symmetrical position is proposed. This method also can distinguish the damage degree.