Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression
The characterization of materials, stress and fatigue state monitoring based on the acoustoelastic principle are gaining widespread attention in recent years, mainly due to their advantages such as high sensitivity and non-destructive character. This article presents the application of a non-destruc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/8/2222 |
| _version_ | 1797537494168764416 |
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| author | Ilona Kieliba Ireneusz Dominik Krzysztof Lalik Thorsten Tonnesen Jacek Szczerba Reiner Telle |
| author_facet | Ilona Kieliba Ireneusz Dominik Krzysztof Lalik Thorsten Tonnesen Jacek Szczerba Reiner Telle |
| author_sort | Ilona Kieliba |
| collection | DOAJ |
| description | The characterization of materials, stress and fatigue state monitoring based on the acoustoelastic principle are gaining widespread attention in recent years, mainly due to their advantages such as high sensitivity and non-destructive character. This article presents the application of a non-destructive acoustic method to test the degree of degradation of materials with which the heating boiler is coated. The combustion chamber is covered in materials when the temperature of the process itself increases, and has a very positive effect on fuel combustion. Unfortunately, with the passage of time, such materials undergo gradation. This article describes an innovative measuring system that has been successfully applied to monitor changes in resonance frequency under uniaxial compression in refractory grade material, which by definition is characterized by a high level of heterogeneity with a network of pre-existing cracks. The paper indicates that both stress and elasticity coefficients have an impact on the vibration frequency of the measuring system. Initial research was conducted to qualitatively determine the influence of these parameters on the measured frequency of the system. |
| first_indexed | 2024-03-10T12:16:56Z |
| format | Article |
| id | doaj.art-fcbf527ec8a5474bae8fc6e6752c32c1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T12:16:56Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-fcbf527ec8a5474bae8fc6e6752c32c12023-11-21T15:50:02ZengMDPI AGEnergies1996-10732021-04-01148222210.3390/en14082222Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial CompressionIlona Kieliba0Ireneusz Dominik1Krzysztof Lalik2Thorsten Tonnesen3Jacek Szczerba4Reiner Telle5GHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, GermanyFaculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, PolandFaculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, PolandGHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, GermanyFaculty of Ceramics and Materials Engineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, PolandGHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, GermanyThe characterization of materials, stress and fatigue state monitoring based on the acoustoelastic principle are gaining widespread attention in recent years, mainly due to their advantages such as high sensitivity and non-destructive character. This article presents the application of a non-destructive acoustic method to test the degree of degradation of materials with which the heating boiler is coated. The combustion chamber is covered in materials when the temperature of the process itself increases, and has a very positive effect on fuel combustion. Unfortunately, with the passage of time, such materials undergo gradation. This article describes an innovative measuring system that has been successfully applied to monitor changes in resonance frequency under uniaxial compression in refractory grade material, which by definition is characterized by a high level of heterogeneity with a network of pre-existing cracks. The paper indicates that both stress and elasticity coefficients have an impact on the vibration frequency of the measuring system. Initial research was conducted to qualitatively determine the influence of these parameters on the measured frequency of the system.https://www.mdpi.com/1996-1073/14/8/2222resonance frequencyacoustoelasticityself-excited systemrefractoriesconcrete |
| spellingShingle | Ilona Kieliba Ireneusz Dominik Krzysztof Lalik Thorsten Tonnesen Jacek Szczerba Reiner Telle Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression Energies resonance frequency acoustoelasticity self-excited system refractories concrete |
| title | Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression |
| title_full | Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression |
| title_fullStr | Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression |
| title_full_unstemmed | Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression |
| title_short | Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression |
| title_sort | self excited acoustical system frequency monitoring for refractory concrete under uniaxial compression |
| topic | resonance frequency acoustoelasticity self-excited system refractories concrete |
| url | https://www.mdpi.com/1996-1073/14/8/2222 |
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