PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves
Since mechanical stress in structures affects issues such as strength, expected operational life and dimensional stability, a continuous stress monitoring scheme is necessary for a complete integrity assessment. Consequently, this paper proposes a stress monitoring scheme for cylindrical specimens,...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-12-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/17/12/2788 |
| _version_ | 1828394861084016640 |
|---|---|
| author | Jabid Quiroga Luis Mujica Rodolfo Villamizar Magda Ruiz Jhonatan Camacho |
| author_facet | Jabid Quiroga Luis Mujica Rodolfo Villamizar Magda Ruiz Jhonatan Camacho |
| author_sort | Jabid Quiroga |
| collection | DOAJ |
| description | Since mechanical stress in structures affects issues such as strength, expected operational life and dimensional stability, a continuous stress monitoring scheme is necessary for a complete integrity assessment. Consequently, this paper proposes a stress monitoring scheme for cylindrical specimens, which are widely used in structures such as pipelines, wind turbines or bridges. The approach consists of tracking guided wave variations due to load changes, by comparing wave statistical patterns via Principal Component Analysis (PCA). Each load scenario is projected to the PCA space by means of a baseline model and represented using the Q-statistical indices. Experimental validation of the proposed methodology is conducted on two specimens: (i) a 12.7 mm ( 1 / 2 ″ ) diameter, 0.4 m length, AISI 1020 steel rod, and (ii) a 25.4 mm ( 1 ″ ) diameter, 6m length, schedule 40, A-106, hollow cylinder. Specimen 1 was subjected to axial loads, meanwhile specimen 2 to flexion. In both cases, simultaneous longitudinal and flexural guided waves were generated via piezoelectric devices (PZTs) in a pitch-catch configuration. Experimental results show the feasibility of the approach and its potential use as in-situ continuous stress monitoring application. |
| first_indexed | 2024-12-10T08:02:56Z |
| format | Article |
| id | doaj.art-3af4daef0cac49218c9852a549063970 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T08:02:56Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-3af4daef0cac49218c9852a5490639702022-12-22T01:56:45ZengMDPI AGSensors1424-82202017-12-011712278810.3390/s17122788s17122788PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided WavesJabid Quiroga0Luis Mujica1Rodolfo Villamizar2Magda Ruiz3Jhonatan Camacho4Schools of Mechanical and Electric, Electronics and Telecommunications Engineering, Universidad Industrial de Santander (UIS), Cra 27 Calle 9, 680002 Bucaramanga, ColombiaDepartament de Matemàtiques, CoDAlab, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, Campus Diagonal-Besòs. C, Eduard Maristany, 6-12, St. Adrià de Besòs, 08930 Barcelona, SpainSchools of Mechanical and Electric, Electronics and Telecommunications Engineering, Universidad Industrial de Santander (UIS), Cra 27 Calle 9, 680002 Bucaramanga, ColombiaDepartament de Matemàtiques, CoDAlab, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, Campus Diagonal-Besòs. C, Eduard Maristany, 6-12, St. Adrià de Besòs, 08930 Barcelona, SpainDepartament de Matemàtiques, CoDAlab, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, Campus Diagonal-Besòs. C, Eduard Maristany, 6-12, St. Adrià de Besòs, 08930 Barcelona, SpainSince mechanical stress in structures affects issues such as strength, expected operational life and dimensional stability, a continuous stress monitoring scheme is necessary for a complete integrity assessment. Consequently, this paper proposes a stress monitoring scheme for cylindrical specimens, which are widely used in structures such as pipelines, wind turbines or bridges. The approach consists of tracking guided wave variations due to load changes, by comparing wave statistical patterns via Principal Component Analysis (PCA). Each load scenario is projected to the PCA space by means of a baseline model and represented using the Q-statistical indices. Experimental validation of the proposed methodology is conducted on two specimens: (i) a 12.7 mm ( 1 / 2 ″ ) diameter, 0.4 m length, AISI 1020 steel rod, and (ii) a 25.4 mm ( 1 ″ ) diameter, 6m length, schedule 40, A-106, hollow cylinder. Specimen 1 was subjected to axial loads, meanwhile specimen 2 to flexion. In both cases, simultaneous longitudinal and flexural guided waves were generated via piezoelectric devices (PZTs) in a pitch-catch configuration. Experimental results show the feasibility of the approach and its potential use as in-situ continuous stress monitoring application.https://www.mdpi.com/1424-8220/17/12/2788acoustoelasticitystress monitoringguided wavespiezoelectricsstatistical analysiscylindrical waveguide |
| spellingShingle | Jabid Quiroga Luis Mujica Rodolfo Villamizar Magda Ruiz Jhonatan Camacho PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves Sensors acoustoelasticity stress monitoring guided waves piezoelectrics statistical analysis cylindrical waveguide |
| title | PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves |
| title_full | PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves |
| title_fullStr | PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves |
| title_full_unstemmed | PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves |
| title_short | PCA Based Stress Monitoring of Cylindrical Specimens Using PZTs and Guided Waves |
| title_sort | pca based stress monitoring of cylindrical specimens using pzts and guided waves |
| topic | acoustoelasticity stress monitoring guided waves piezoelectrics statistical analysis cylindrical waveguide |
| url | https://www.mdpi.com/1424-8220/17/12/2788 |
| work_keys_str_mv | AT jabidquiroga pcabasedstressmonitoringofcylindricalspecimensusingpztsandguidedwaves AT luismujica pcabasedstressmonitoringofcylindricalspecimensusingpztsandguidedwaves AT rodolfovillamizar pcabasedstressmonitoringofcylindricalspecimensusingpztsandguidedwaves AT magdaruiz pcabasedstressmonitoringofcylindricalspecimensusingpztsandguidedwaves AT jhonatancamacho pcabasedstressmonitoringofcylindricalspecimensusingpztsandguidedwaves |