Effect of trigger system on experimental dispersion characteristics of active surface wave testing

IF 2.6 2区 工程技术 Q2 ENGINEERING, CIVIL Earthquake Engineering and Engineering Vibration Pub Date : 2024-04-19 DOI:10.1007/s11803-024-2237-9
Shibin Lin, Jeramy C. Ashlock, Liming Zhu, Zexiang Qin, Bo Li, Xingji Zhu, Changhai Zhai
{"title":"Effect of trigger system on experimental dispersion characteristics of active surface wave testing","authors":"Shibin Lin, Jeramy C. Ashlock, Liming Zhu, Zexiang Qin, Bo Li, Xingji Zhu, Changhai Zhai","doi":"10.1007/s11803-024-2237-9","DOIUrl":null,"url":null,"abstract":"<p>A trigger system is typically employed in active seismic testing to trigger and synchronize multichannel surface wave data acquisition. The effect of the trigger system on the dispersion image of surface waves is empirically known to be negligible, however, theoretical explanation regarding the effect of the trigger system is insufficient. This study systematically examines the theory for surface wave dispersion analysis and proves that the effect of the trigger system on a dispersion image is negligible via a solid theoretical explanation. Subsequently, based on the new theoretical explanation, an alternative method that uses only the relative phase difference between sensors to extract dispersion characteristics with better conceptual clarity is proposed. Two active surface wave testing cases are considered to validate the theory and method. The results indicate that (1) an accurate trigger system is not necessary for surface wave data acquisition, and (2) it is unnecessary to assume that the impact point is the generation point of the surface waves for the experimental dispersion analysis.</p>","PeriodicalId":11416,"journal":{"name":"Earthquake Engineering and Engineering Vibration","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Earthquake Engineering and Engineering Vibration","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s11803-024-2237-9","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0

Abstract

A trigger system is typically employed in active seismic testing to trigger and synchronize multichannel surface wave data acquisition. The effect of the trigger system on the dispersion image of surface waves is empirically known to be negligible, however, theoretical explanation regarding the effect of the trigger system is insufficient. This study systematically examines the theory for surface wave dispersion analysis and proves that the effect of the trigger system on a dispersion image is negligible via a solid theoretical explanation. Subsequently, based on the new theoretical explanation, an alternative method that uses only the relative phase difference between sensors to extract dispersion characteristics with better conceptual clarity is proposed. Two active surface wave testing cases are considered to validate the theory and method. The results indicate that (1) an accurate trigger system is not necessary for surface wave data acquisition, and (2) it is unnecessary to assume that the impact point is the generation point of the surface waves for the experimental dispersion analysis.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
触发系统对主动表面波测试实验频散特性的影响
在主动地震测试中,触发系统通常用于触发和同步多道面波数据采集。根据经验,触发系统对面波频散图像的影响可以忽略不计,但有关触发系统影响的理论解释却不够充分。本研究系统地研究了面波频散分析的理论,并通过可靠的理论解释证明触发系统对频散图像的影响可以忽略不计。随后,根据新的理论解释,提出了另一种方法,即仅使用传感器之间的相对相位差来提取频散特性,概念更加清晰。我们考虑了两个主动表面波测试案例来验证理论和方法。结果表明:(1) 表层波数据采集不需要精确的触发系统;(2) 实验频散分析不需要假定冲击点是表层波的产生点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
4.70
自引率
21.40%
发文量
1057
审稿时长
9 months
期刊介绍: Earthquake Engineering and Engineering Vibration is an international journal sponsored by the Institute of Engineering Mechanics (IEM), China Earthquake Administration in cooperation with the Multidisciplinary Center for Earthquake Engineering Research (MCEER), and State University of New York at Buffalo. It promotes scientific exchange between Chinese and foreign scientists and engineers, to improve the theory and practice of earthquake hazards mitigation, preparedness, and recovery. The journal focuses on earthquake engineering in all aspects, including seismology, tsunamis, ground motion characteristics, soil and foundation dynamics, wave propagation, probabilistic and deterministic methods of dynamic analysis, behavior of structures, and methods for earthquake resistant design and retrofit of structures that are germane to practicing engineers. It includes seismic code requirements, as well as supplemental energy dissipation, base isolation, and structural control.
期刊最新文献
Field survey and analysis on near-fault severely damaged high-speed railway bridge in 2022 M6.9 Menyuan earthquake Physics-based seismic analysis of ancient wood structure: fault-to-structure simulation Nonlinear vibration of Timoshenko FG porous sandwich beams subjected to a harmonic axial load Wave propagation of a functionally graded plate via integral variables with a hyperbolic arcsine function Optimal design for rubber concrete layered periodic foundations based on the analytical approximations of band gaps and mapping relations
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1