首页> 外文会议>Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2009. IDAACS 2009 >Non destructive monitoring of civil engineering structures by using time frequency representation
【24h】

Non destructive monitoring of civil engineering structures by using time frequency representation

机译:使用时频表示的土木工程结构无损监测

获取原文

摘要

The paper deals with the non destructive monitoring of civil engineering structures by using the time frequency representation. In particular the Acoustic Emission (AE) of the cracks that can occur inside structures can be evaluated for the study of damage growth. This analysis requires high sampling frequency and long time of observation. Therefore the proposed solution consists of two phases. The first one concerns the acquisition of the AE, the second one deals with the analysis of the acquired data by the Time Frequency Representations. The latter phase allows the identification of the frequencies connected to disaster events like the structural subsidence. The test validation in order to asses the effectiveness of the acquiring system set up is performed according with the standard for the AE in the concrete structures.
机译:本文采用时频表示方法对土木工程结构进行无损监测。特别是可以评估结构内部可能发生的裂纹的声发射(AE),以研究损伤的增长。这种分析需要较高的采样频率和较长的观察时间。因此,所提出的解决方案包括两个阶段。第一个涉及AE的获取,第二个涉及通过时频表示对获取的数据进行分析。后一个阶段允许识别与诸如结构沉降之类的灾害事件相关的频率。为了评估采集系统的有效性,根据混凝土结构中AE的标准进行了测试验证。

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