| 基于频率响应函数的海洋平台结构损伤检测 |
| |
| 引用本文： | 赵玉玲,张兆德. 基于频率响应函数的海洋平台结构损伤检测[J]. 石油机械, 2007, 35(5): 25-28 |
| |
| 作者姓名： | 赵玉玲 张兆德 |
| |
| 作者单位： | 1. 济南大学土木建筑学院
2. 中国海洋大学工程学院 |
| |
| 摘 要： | 结构的损伤会引起结构频率响应函数的变化,对于导管架式海洋平台,考虑在不同位置、发生不同程度的损伤、发生多处损伤以及噪声影响时,通过用数值计算方法,利用结构频率响应函数的变化可以预测平台下部结构中构件的损伤。这种方法可对断裂构件进行初步定位;还可能判断多处损伤的存在;在10%随机噪声的情况下,仍可以判断平台下部构件的断裂损伤。
|
| 关 键 词： | 海洋平台 损伤检测 数值模拟 频率响应函数 |
| 修稿时间： | 2007-01-25 |
Detection of offshore platform structure crack based on frequency response function |
| |
| Zhao Yuling,Zhang Zhaode. Detection of offshore platform structure crack based on frequency response function[J]. China Petroleum Machinery, 2007, 35(5): 25-28 |
| |
| Authors: | Zhao Yuling Zhang Zhaode |
| |
| Abstract: | The crack of the offshore platform structure may cause the frequency response function(FRF)to change.When crack with different degree occurs at different location,or cracks occur at various locations and there is noise influence for jacket type platform,the alteration of FRF can be used to predict the crack of the components at the lower structure of the platform by means of numerical simulation.The broken components can be determined and the cracks at various locations can be judged,too.The crack of the lower components of the platform still can be determined under the condition of 10% random noise. |
| |
| Keywords: | offshore platform crack detection numerical simulation frequency response function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
