Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation
The electromechanical impedance model of the piezoelectric ceramics in a free state can be used for screening and quality control in the structural health monitoring community, but the derivation process of the existing model is usually complicated. This paper describes a novel theoretical derivatio...
| Main Authors: | , , , , |
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| Format: | Article |
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MDPI AG
2020-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/21/4735 |
| _version_ | 1797550048308887552 |
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| author | Xiangxing Kong Chunyang Chen Xiao Liu Jianjian Zhu Xinlin Qing |
| author_facet | Xiangxing Kong Chunyang Chen Xiao Liu Jianjian Zhu Xinlin Qing |
| author_sort | Xiangxing Kong |
| collection | DOAJ |
| description | The electromechanical impedance model of the piezoelectric ceramics in a free state can be used for screening and quality control in the structural health monitoring community, but the derivation process of the existing model is usually complicated. This paper describes a novel theoretical derivation methodology based on the assumption of zero-stress on the free boundary of the one-dimensional transducer, which can simplify the derivation of the model to a large extent. To assess the accuracy of the model, a signal processing method based on frequency shifting transformation and the Pearson correlation coefficient is also proposed to calculate the similarity between theoretically predicted and experimentally measured data. Two different piezoelectric ceramics were used in experiments to verify the effectiveness of the model. Experimental results convincingly demonstrate that the assumption proposed in this paper possesses good feasibility for one-dimensional thin-walled piezoelectric ceramics and the model has excellent precision. |
| first_indexed | 2024-03-10T15:23:56Z |
| format | Article |
| id | doaj.art-ac4526d92bb141e4b2e307476607b475 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T15:23:56Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ac4526d92bb141e4b2e307476607b4752023-11-20T18:15:53ZengMDPI AGMaterials1996-19442020-10-011321473510.3390/ma13214735Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel DerivationXiangxing Kong0Chunyang Chen1Xiao Liu2Jianjian Zhu3Xinlin Qing4Aero Engine Academy of China, Beijing 101304, ChinaSchool of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaSchool of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaSchool of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaSchool of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaThe electromechanical impedance model of the piezoelectric ceramics in a free state can be used for screening and quality control in the structural health monitoring community, but the derivation process of the existing model is usually complicated. This paper describes a novel theoretical derivation methodology based on the assumption of zero-stress on the free boundary of the one-dimensional transducer, which can simplify the derivation of the model to a large extent. To assess the accuracy of the model, a signal processing method based on frequency shifting transformation and the Pearson correlation coefficient is also proposed to calculate the similarity between theoretically predicted and experimentally measured data. Two different piezoelectric ceramics were used in experiments to verify the effectiveness of the model. Experimental results convincingly demonstrate that the assumption proposed in this paper possesses good feasibility for one-dimensional thin-walled piezoelectric ceramics and the model has excellent precision.https://www.mdpi.com/1996-1944/13/21/4735structural health monitoringelectromechanical impedancepiezoelectric ceramicscorrelation coefficient |
| spellingShingle | Xiangxing Kong Chunyang Chen Xiao Liu Jianjian Zhu Xinlin Qing Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation Materials structural health monitoring electromechanical impedance piezoelectric ceramics correlation coefficient |
| title | Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation |
| title_full | Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation |
| title_fullStr | Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation |
| title_full_unstemmed | Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation |
| title_short | Electromechanical Impedance Model for Free 1D Thin-Walled Piezoelectric Ceramics with a Novel Derivation |
| title_sort | electromechanical impedance model for free 1d thin walled piezoelectric ceramics with a novel derivation |
| topic | structural health monitoring electromechanical impedance piezoelectric ceramics correlation coefficient |
| url | https://www.mdpi.com/1996-1944/13/21/4735 |
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