Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis
The cuplock scaffolds are widely used as a temporary facility in the bridge and other constructions. The looseness of cuplock scaffold connection plays a significant role in the stability of the structure. Contemporary structural health monitoring method is reviewed in this paper at first, and then...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/695845 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545803711807488 |
|---|---|
| author | Liuyu Zhang Chenyu Wang Gangbing Song |
| author_facet | Liuyu Zhang Chenyu Wang Gangbing Song |
| author_sort | Liuyu Zhang |
| collection | DOAJ |
| description | The cuplock scaffolds are widely used as a temporary facility in the bridge and other constructions. The looseness of cuplock scaffold connection plays a significant role in the stability of the structure. Contemporary structural health monitoring method is reviewed in this paper at first, and then we proposed wavelet packet analysis based method. In order to detect the looseness of cuplock connection, three stress PZTs and three shear PZTs used as transducers are mounted onto vertical bar and cross bars of cuplok scaffold. Wavelet packet analysis is applied to analyze the transmitted signal energy between two PZTs through cuplok connection. Experimental results show that shear PZT has better performance than stress PZT to be used as actuator and sensor for the wavelet packet analysis based structural health monitoring. Besides, a sensor looseness index matrix (SLIM) is derived to indicate the looseness of the cuplock connection. The experimental results show that looseness index increases as the connection gets loose. |
| format | Article |
| id | doaj-art-ad3db14df2bb45b7a3e15b832c978d50 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-ad3db14df2bb45b7a3e15b832c978d502025-02-03T07:24:39ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/695845695845Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet AnalysisLiuyu Zhang0Chenyu Wang1Gangbing Song2Engineering Research Center for Large Highway Structure Safety of the Ministry of Education, Chang’an University, Xi’an, Shaanxi 710064, ChinaSmart Material and Structure Laboratory, Department of Mechanical Engineering, University of Houston, Houston, TX 77004, USASmart Material and Structure Laboratory, Department of Mechanical Engineering, University of Houston, Houston, TX 77004, USAThe cuplock scaffolds are widely used as a temporary facility in the bridge and other constructions. The looseness of cuplock scaffold connection plays a significant role in the stability of the structure. Contemporary structural health monitoring method is reviewed in this paper at first, and then we proposed wavelet packet analysis based method. In order to detect the looseness of cuplock connection, three stress PZTs and three shear PZTs used as transducers are mounted onto vertical bar and cross bars of cuplok scaffold. Wavelet packet analysis is applied to analyze the transmitted signal energy between two PZTs through cuplok connection. Experimental results show that shear PZT has better performance than stress PZT to be used as actuator and sensor for the wavelet packet analysis based structural health monitoring. Besides, a sensor looseness index matrix (SLIM) is derived to indicate the looseness of the cuplock connection. The experimental results show that looseness index increases as the connection gets loose.http://dx.doi.org/10.1155/2015/695845 |
| spellingShingle | Liuyu Zhang Chenyu Wang Gangbing Song Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis Shock and Vibration |
| title | Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis |
| title_full | Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis |
| title_fullStr | Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis |
| title_full_unstemmed | Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis |
| title_short | Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis |
| title_sort | health status monitoring of cuplock scaffold joint connection based on wavelet packet analysis |
| url | http://dx.doi.org/10.1155/2015/695845 |
| work_keys_str_mv | AT liuyuzhang healthstatusmonitoringofcuplockscaffoldjointconnectionbasedonwaveletpacketanalysis AT chenyuwang healthstatusmonitoringofcuplockscaffoldjointconnectionbasedonwaveletpacketanalysis AT gangbingsong healthstatusmonitoringofcuplockscaffoldjointconnectionbasedonwaveletpacketanalysis |