Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams
The recent rapid development of rotation rate sensor technology opens new opportunities for their application in more and more fields. In this paper, the potential of rotational sensors for the modal analysis of full-scale civil engineering structural elements is experimentally examined. For this pu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/17/4711 |
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| author | Piotr Adam Bońkowski Piotr Bobra Zbigniew Zembaty Bronisław Jędraszak |
| author_facet | Piotr Adam Bońkowski Piotr Bobra Zbigniew Zembaty Bronisław Jędraszak |
| author_sort | Piotr Adam Bońkowski |
| collection | DOAJ |
| description | The recent rapid development of rotation rate sensor technology opens new opportunities for their application in more and more fields. In this paper, the potential of rotational sensors for the modal analysis of full-scale civil engineering structural elements is experimentally examined. For this purpose, vibrations of two 6-m long beams made of ultra-high performance concrete (UHPC) were measured using microelectromechanical system (MEMS) rotation rate sensors. The beams were excited to vibrations using an impact hammer and a dynamic vibration exciter. The results of the experiment show that by using rotation rate sensors, one can directly obtain derivatives of mode shapes and deflection shapes. These derivatives of mode shapes, often called “rotational modes”, bring more information regarding possible local stiffness variations than the traditional transversal and deflection mode shapes, so their extraction during structural health monitoring is particularly useful. Previously, the rotational modes could only be obtained indirectly (e.g., by central difference approximation). Here, with the application of rotation rate sensors, one can obtain rotational modes and deflection shapes with a higher precision. Furthermore, the average strain rate and dynamic strain were acquired using the rotation rate sensors. The laboratory experiments demonstrated that rotation rate sensors were matured enough to be used in the monitoring and modal analyses of full-scale civil engineering elements (e.g., reinforced concrete beams). |
| first_indexed | 2024-03-10T17:07:08Z |
| format | Article |
| id | doaj.art-a9deaefc6f0047ae983693578933503c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T17:07:08Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a9deaefc6f0047ae983693578933503c2023-11-20T10:47:00ZengMDPI AGSensors1424-82202020-08-012017471110.3390/s20174711Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete BeamsPiotr Adam Bońkowski0Piotr Bobra1Zbigniew Zembaty2Bronisław Jędraszak3Faculty of Civil Engineering and Architecture, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, PolandFaculty of Civil Engineering and Architecture, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, PolandFaculty of Civil Engineering and Architecture, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, PolandFaculty of Civil Engineering and Architecture, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, PolandThe recent rapid development of rotation rate sensor technology opens new opportunities for their application in more and more fields. In this paper, the potential of rotational sensors for the modal analysis of full-scale civil engineering structural elements is experimentally examined. For this purpose, vibrations of two 6-m long beams made of ultra-high performance concrete (UHPC) were measured using microelectromechanical system (MEMS) rotation rate sensors. The beams were excited to vibrations using an impact hammer and a dynamic vibration exciter. The results of the experiment show that by using rotation rate sensors, one can directly obtain derivatives of mode shapes and deflection shapes. These derivatives of mode shapes, often called “rotational modes”, bring more information regarding possible local stiffness variations than the traditional transversal and deflection mode shapes, so their extraction during structural health monitoring is particularly useful. Previously, the rotational modes could only be obtained indirectly (e.g., by central difference approximation). Here, with the application of rotation rate sensors, one can obtain rotational modes and deflection shapes with a higher precision. Furthermore, the average strain rate and dynamic strain were acquired using the rotation rate sensors. The laboratory experiments demonstrated that rotation rate sensors were matured enough to be used in the monitoring and modal analyses of full-scale civil engineering elements (e.g., reinforced concrete beams).https://www.mdpi.com/1424-8220/20/17/4711modal analysisrotational modegyroscoperotation rate sensorsUHPCreinforced concrete beams |
| spellingShingle | Piotr Adam Bońkowski Piotr Bobra Zbigniew Zembaty Bronisław Jędraszak Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams Sensors modal analysis rotational mode gyroscope rotation rate sensors UHPC reinforced concrete beams |
| title | Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams |
| title_full | Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams |
| title_fullStr | Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams |
| title_full_unstemmed | Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams |
| title_short | Application of Rotation Rate Sensors in Modal and Vibration Analyses of Reinforced Concrete Beams |
| title_sort | application of rotation rate sensors in modal and vibration analyses of reinforced concrete beams |
| topic | modal analysis rotational mode gyroscope rotation rate sensors UHPC reinforced concrete beams |
| url | https://www.mdpi.com/1424-8220/20/17/4711 |
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