...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mechanical systems and signal processing >Frequency response function interpolation for damage detection under changing environment
【24h】

Frequency response function interpolation for damage detection under changing environment

机译：频率响应函数插值，可在变化的环境中进行损坏检测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Damage detection can be carried out based on measured dynamic characteristics of the monitored structure. Several experimental investigations have shown that structural parameters are affected by environmental conditions. This circumstance can lead to erroneous conclusions if damage detection methods based on variations of global structural parameters are applied without properly taking into account this influence. In this paper the sensitivity to changing temperature of a new damage detection method, denoted as interpolation damage detection method (1DDM), is investigated with reference to an experimental example, widely studied by several researchers to check damage detection algorithms: the 140 bridge. Results show that, despite the changes of temperature, the 1DDM provides a correct identification of damage location even for cases where the evolution of modal frequencies belies the actual damaged state of the structure. The sensitivity of the IDDM to the joint effect of gradient of temperature and noise in the recorded data is also investigated with reference to a numerical example.
机译：可以基于所监视结构的动态特性进行损坏检测。几项实验研究表明，结构参数受环境条件的影响。如果在不适当考虑此影响的情况下应用基于全局结构参数变化的损坏检测方法，则可能导致错误的结论。本文参考一个实验示例研究了一种新的损伤检测方法对温度变化的敏感性，该方法称为内插损伤检测方法（1DDM），该示例已被几位研究人员广泛研究以检查损伤检测算法：140桥。结果表明，尽管温度发生了变化，但即使模态频率的演变掩盖了结构的实际损坏状态，1DDM仍可以正确识别损坏位置。还参考数字示例研究了IDDM对记录数据中温度和噪声梯度的联合影响的敏感性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号