基于波速修正的堆石坝面板损伤声发射源组合定位方法
作者:
作者单位:

(1.水灾害防御全国重点实验室,江苏 南京210098;2.河海大学水利水电学院,江苏 南京210098 )

作者简介:

徐晓阳(1992—),男,硕士研究生,主要从事水工结构安全监测研究。E-mail:xu_xiaoyang2015@yeah.net

通讯作者:

中图分类号:

TV331

基金项目:

国家自然科学基金项目(52239009,U2243223);国家重点研发计划项目(2019YFC1510801)


A combined locating method of acoustic emission sources for rockfill dam face slab damage based on wave velocity correction
Author:
Affiliation:

(1.The National Key Laboratory of Water Disaster Prevention, Nanjing 210098, China;2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 文章评论
    摘要:

    为提高堆石坝混凝土面板损伤声发射源定位精度,提出了一种基于波速修正的堆石坝面板损伤声发射源组合定位方法——BSO-IGeiger法。该方法利用波速修正对已知恒定波速时差法(Geiger法)进行改进并建立定位目标函数,通过基于学习淘汰机制的天牛群搜索算法(BSO)求解定位目标函数,同时给出了一种传感器阵列健康监测网络布设方式进行区域定位和传感器存活检测,以保障堆石坝面板声源定位的可靠性。试验验证结果表明,BSO-IGeiger法定位效果明显优于Geiger法和未知恒定波速时差法。

    Abstract:

    To improve the accuracy of acoustic emission source locating for concrete panel damage in rockfill dams, a combined acoustic emission source locating method based on wave velocity correction, BSO-IGeiger method, is proposed. Wave velocity correction is used to improve the known constant wave velocity time difference method (Geiger method) and a localization objective function is established. The localization objective function is solved using the learning elimination mechanism-based beetle herd search algorithm (BSO). At the same time, a sensor array health monitoring network layout method is developed for area localization and sensor survival detection to ensure the reliability of the sound source localization of the rockfill dam panel. The experimental verification results show that the locating effect of BSO-IGeiger method is significantly better than that of Geiger method and the unknown constant wave velocity time difference method.

    参考文献
    相似文献
    引证文献
引用本文

徐晓阳,苏怀智,闫潇群,等.基于波速修正的堆石坝面板损伤声发射源组合定位方法[J].水利水电科技进展,2023,43(4):86-91, 104.(XU Xiaoyang, SU Huaizhi, YAN Xiaoqun, et al. A combined locating method of acoustic emission sources for rockfill dam face slab damage based on wave velocity correction[J]. Advances in Science and Technology of Water Resources,2023,43(4):86-91, 104.(in Chinese))

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-08-09
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2023-07-27
  • 出版日期: