A Wireless Strain Sensor Network for Structural Health Monitoring

被引：17
|
作者：
Liu, Chengyin [1 ,2 ]
Teng, Jun [2 ]
Wu, Ning [2 ]
机构：
[1] Southeast Univ, Key Lab C&PC Struct, Nanjing 211189, Jiangsu, Peoples R China
[2] Shenzhen Grad Sch, Harbin Inst Technol, Dept Civil & Environm Engn, Shenzhen 518055, Peoples R China
来源：
SHOCK AND VIBRATION | 2015年 / 2015卷
关键词：
SYSTEM;
D O I：
10.1155/2015/740471
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Structural strain under external environmental loads is one of the main monitoring parameters in structural health monitoring or dynamic tests. This paper presents a wireless strain sensor network (WSSN) design for monitoring structural dynamic strain field. A precision strain sensor board is developed and integrated with the IRIS mote hardware/software platform for multichannel strain gauge signal conditioning and wireless monitoring. Measurement results confirm the sensor's functionality regarding its static and dynamic characterization. Furthermore, in order to verify the functionality of the designed wireless strain sensor for dynamic strain monitoring, a cluster-star network evaluation system is developed for strain modal testing on an experimental steel truss structure. Test results show very good agreement with the finite element (FE) simulations. This paper demonstrates the feasibility of the proposed WSSN for large structural dynamic strain monitoring.
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收藏
页数：13
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