Embedded transmissibility function analysis for damage detection in a mobile sensor network

被引：1

作者：

Yi, Xiaohua ^{[1
]}

Zhu, Dapeng ^{[1
]}

Wang, Yang ^{[1
]}

Guo, Jiajie ^{[2
]}

Lee, Kok-Meng ^{[2
]}

机构：

[1] Georgia Inst Technol, Sch Civil & Environm Eng, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Mech Engn, Atlanta, GA 30332 USA

来源：

SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2010 | 2010年 / 7647卷

基金：

美国国家科学基金会;

关键词：

Embedded computing; transmissibility function analysis; mobile sensor network; damage detection; DETECTION ALGORITHMS; WIRELESS;

D O I：

10.1117/12.847256

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Structural health monitoring (SHM) and damage detection have attracted great interest in recent decades, in meeting the challenges of assessing the safety condition of large-scale civil structures. By wiring remote sensors directly to a centralized data acquisition system, traditional structural health monitoring systems are usually costly and the installation is time-consuming. Recent advances in wireless sensing technology have made it feasible for structural health monitoring; furthermore, the computational core in a wireless sensing unit offers onboard data interrogation. In addition to wireless sensing, the authors have recently developed a mobile sensing system for providing high spatial resolution and flexible sensor deployment in structural health monitoring. In this study, transmissibility function analysis is embedded in the mobile sensing node to perform onboard and in-network structural damage detection. The system implementation is validated using a laboratory 2D steel portal frame. Simulated damage is applied to the frame structure, and the damage is successfully identified by two mobile sensing nodes that autonomously navigate through the structure.

引用

页数：9

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