--- _id: '53824' author: - first_name: Kevin full_name: Koch, Kevin last_name: Koch - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Koch K, Claes L, Jurgelucks B, Meihost L, Henning B. Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze. In: Gesellschaft für Akustik e.V. D, ed. Fortschritte der Akustik - DAGA 2024. ; 2024:1113–1116.' apa: Koch, K., Claes, L., Jurgelucks, B., Meihost, L., & Henning, B. (2024). Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze. In D. Gesellschaft für Akustik e.V. (Ed.), Fortschritte der Akustik - DAGA 2024 (pp. 1113–1116). bibtex: '@inproceedings{Koch_Claes_Jurgelucks_Meihost_Henning_2024, title={Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze}, booktitle={Fortschritte der Akustik - DAGA 2024}, author={Koch, Kevin and Claes, Leander and Jurgelucks, Benjamin and Meihost, Lars and Henning, Bernd}, editor={Gesellschaft für Akustik e.V., Deutsche }, year={2024}, pages={1113–1116} }' chicago: Koch, Kevin, Leander Claes, Benjamin Jurgelucks, Lars Meihost, and Bernd Henning. “Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze.” In Fortschritte der Akustik - DAGA 2024, edited by Deutsche Gesellschaft für Akustik e.V., 1113–1116, 2024. ieee: K. Koch, L. Claes, B. Jurgelucks, L. Meihost, and B. Henning, “Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze,” in Fortschritte der Akustik - DAGA 2024, 2024, pp. 1113–1116. mla: Koch, Kevin, et al. “Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze.” Fortschritte der Akustik - DAGA 2024, edited by Deutsche Gesellschaft für Akustik e.V., 2024, pp. 1113–1116. short: 'K. Koch, L. Claes, B. Jurgelucks, L. Meihost, B. Henning, in: D. Gesellschaft für Akustik e.V. (Ed.), Fortschritte der Akustik - DAGA 2024, 2024, pp. 1113–1116.' conference: end_date: 2024-03-21 start_date: 2024-03-18 date_created: 2024-05-02T13:34:01Z date_updated: 2026-01-05T07:56:42Z ddc: - '620' department: - _id: '49' editor: - first_name: 'Deutsche ' full_name: 'Gesellschaft für Akustik e.V., Deutsche ' last_name: Gesellschaft für Akustik e.V. file: - access_level: open_access content_type: application/pdf creator: leanderc date_created: 2024-05-02T13:36:51Z date_updated: 2024-05-02T14:06:28Z file_id: '53825' file_name: daga2024koch.pdf file_size: 365911 relation: main_file file_date_updated: 2024-05-02T14:06:28Z has_accepted_license: '1' language: - iso: ger oa: '1' page: 1113–1116 project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: Fortschritte der Akustik - DAGA 2024 status: public title: Inverses Verfahren zur Identifikation piezoelektrischer Materialparameter unterstützt durch neuronale Netze type: conference user_id: '11829' year: '2024' ... --- _id: '56834' author: - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Claus full_name: Scheidemann, Claus id: '38259' last_name: Scheidemann - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Friesen O, Claes L, Scheidemann C, Feldmann N, Hemsel T, Henning B. Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens. In: 2023 International Congress on Ultrasonics, Beijing, China. Vol 2822. IOP Publishing; 2024:012125. doi:10.1088/1742-6596/2822/1/012125' apa: Friesen, O., Claes, L., Scheidemann, C., Feldmann, N., Hemsel, T., & Henning, B. (2024). Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens. 2023 International Congress on Ultrasonics, Beijing, China, 2822, 012125. https://doi.org/10.1088/1742-6596/2822/1/012125 bibtex: '@inproceedings{Friesen_Claes_Scheidemann_Feldmann_Hemsel_Henning_2024, title={Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens}, volume={2822}, DOI={10.1088/1742-6596/2822/1/012125}, booktitle={2023 International Congress on Ultrasonics, Beijing, China}, publisher={IOP Publishing}, author={Friesen, Olga and Claes, Leander and Scheidemann, Claus and Feldmann, Nadine and Hemsel, Tobias and Henning, Bernd}, year={2024}, pages={012125} }' chicago: Friesen, Olga, Leander Claes, Claus Scheidemann, Nadine Feldmann, Tobias Hemsel, and Bernd Henning. “Estimation of Temperature-Dependent Piezoelectric Material Parameters Using Ring-Shaped Specimens.” In 2023 International Congress on Ultrasonics, Beijing, China, 2822:012125. IOP Publishing, 2024. https://doi.org/10.1088/1742-6596/2822/1/012125. ieee: 'O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, and B. Henning, “Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens,” in 2023 International Congress on Ultrasonics, Beijing, China, 2024, vol. 2822, p. 012125, doi: 10.1088/1742-6596/2822/1/012125.' mla: Friesen, Olga, et al. “Estimation of Temperature-Dependent Piezoelectric Material Parameters Using Ring-Shaped Specimens.” 2023 International Congress on Ultrasonics, Beijing, China, vol. 2822, IOP Publishing, 2024, p. 012125, doi:10.1088/1742-6596/2822/1/012125. short: 'O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, B. Henning, in: 2023 International Congress on Ultrasonics, Beijing, China, IOP Publishing, 2024, p. 012125.' date_created: 2024-10-31T07:59:01Z date_updated: 2026-01-05T07:58:55Z department: - _id: '49' doi: 10.1088/1742-6596/2822/1/012125 intvolume: ' 2822' language: - iso: eng main_file_link: - open_access: '1' url: https://iopscience.iop.org/article/10.1088/1742-6596/2822/1/012125 oa: '1' page: '012125' project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: 2023 International Congress on Ultrasonics, Beijing, China publication_identifier: issn: - 1742-6596 publisher: IOP Publishing status: public title: Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens type: conference user_id: '11829' volume: 2822 year: '2024' ... --- _id: '55470' author: - first_name: Kevin full_name: Koch, Kevin last_name: Koch - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X citation: ama: Koch K, Friesen O, Claes L. Randomised Material Parameter Impedance Dataset of Piezoelectric Rings. Zenodo; 2024. doi:10.5281/zenodo.13143680 apa: Koch, K., Friesen, O., & Claes, L. (2024). Randomised material parameter impedance dataset of piezoelectric rings. Zenodo. https://doi.org/10.5281/zenodo.13143680 bibtex: '@book{Koch_Friesen_Claes_2024, title={Randomised material parameter impedance dataset of piezoelectric rings}, DOI={10.5281/zenodo.13143680}, publisher={Zenodo}, author={Koch, Kevin and Friesen, Olga and Claes, Leander}, year={2024} }' chicago: Koch, Kevin, Olga Friesen, and Leander Claes. Randomised Material Parameter Impedance Dataset of Piezoelectric Rings. Zenodo, 2024. https://doi.org/10.5281/zenodo.13143680. ieee: K. Koch, O. Friesen, and L. Claes, Randomised material parameter impedance dataset of piezoelectric rings. Zenodo, 2024. mla: Koch, Kevin, et al. Randomised Material Parameter Impedance Dataset of Piezoelectric Rings. Zenodo, 2024, doi:10.5281/zenodo.13143680. short: K. Koch, O. Friesen, L. Claes, Randomised Material Parameter Impedance Dataset of Piezoelectric Rings, Zenodo, 2024. date_created: 2024-07-31T14:10:12Z date_updated: 2026-01-05T07:57:46Z department: - _id: '49' doi: 10.5281/zenodo.13143680 project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publisher: Zenodo status: public title: Randomised material parameter impedance dataset of piezoelectric rings type: research_data user_id: '11829' year: '2024' ... --- _id: '53662' author: - first_name: Kevin full_name: Koch, Kevin last_name: Koch - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X citation: ama: Koch K, Claes L. Randomised Material Parameter Piezoelectric Impedance Dataset with Structured Electrodes. zenodo; 2024. doi:10.5281/ZENODO.11064206 apa: Koch, K., & Claes, L. (2024). Randomised material parameter piezoelectric impedance dataset with structured electrodes. zenodo. https://doi.org/10.5281/ZENODO.11064206 bibtex: '@book{Koch_Claes_2024, title={Randomised material parameter piezoelectric impedance dataset with structured electrodes}, DOI={10.5281/ZENODO.11064206}, publisher={zenodo}, author={Koch, Kevin and Claes, Leander}, year={2024} }' chicago: Koch, Kevin, and Leander Claes. Randomised Material Parameter Piezoelectric Impedance Dataset with Structured Electrodes. zenodo, 2024. https://doi.org/10.5281/ZENODO.11064206. ieee: K. Koch and L. Claes, Randomised material parameter piezoelectric impedance dataset with structured electrodes. zenodo, 2024. mla: Koch, Kevin, and Leander Claes. Randomised Material Parameter Piezoelectric Impedance Dataset with Structured Electrodes. zenodo, 2024, doi:10.5281/ZENODO.11064206. short: K. Koch, L. Claes, Randomised Material Parameter Piezoelectric Impedance Dataset with Structured Electrodes, zenodo, 2024. date_created: 2024-04-25T13:54:49Z date_updated: 2026-01-05T07:56:58Z department: - _id: '49' doi: 10.5281/ZENODO.11064206 project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publisher: zenodo status: public title: Randomised material parameter piezoelectric impedance dataset with structured electrodes type: research_data user_id: '11829' year: '2024' ... --- _id: '55416' author: - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Kevin full_name: Koch, Kevin last_name: Koch - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost citation: ama: 'Claes L, Koch K, Friesen O, Meihost L. Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation.; 2024.' apa: 'Claes, L., Koch, K., Friesen, O., & Meihost, L. (2024). Machine learning in inverse measurement problems: An application to piezoelectric material characterisation.' bibtex: '@book{Claes_Koch_Friesen_Meihost_2024, place={International Workshop on Piezoelectric Materials and Applications (IWPMA)}, title={Machine learning in inverse measurement problems: An application to piezoelectric material characterisation}, author={Claes, Leander and Koch, Kevin and Friesen, Olga and Meihost, Lars}, year={2024} }' chicago: 'Claes, Leander, Kevin Koch, Olga Friesen, and Lars Meihost. Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation. International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024.' ieee: 'L. Claes, K. Koch, O. Friesen, and L. Meihost, Machine learning in inverse measurement problems: An application to piezoelectric material characterisation. International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024.' mla: 'Claes, Leander, et al. Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation. 2024.' short: 'L. Claes, K. Koch, O. Friesen, L. Meihost, Machine Learning in Inverse Measurement Problems: An Application to Piezoelectric Material Characterisation, International Workshop on Piezoelectric Materials and Applications (IWPMA), 2024.' date_created: 2024-07-29T12:34:21Z date_updated: 2026-01-05T07:57:27Z department: - _id: '49' language: - iso: eng place: International Workshop on Piezoelectric Materials and Applications (IWPMA) project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: 'Machine learning in inverse measurement problems: An application to piezoelectric material characterisation' type: misc user_id: '11829' year: '2024' ... --- _id: '56777' abstract: - lang: eng text: The estimation of accurate piezoelectric material parameters is a fundamental prerequisite for simulation-driven design of piezoelectric actuators and sensors. Previous studies show that a full set of material parameters can be determined in an inverse procedure using a single disc-shaped specimen with an electrode structured for increased sensitivity with respect to all material parameters. However, in the case of high-power actuator applications, ring-shaped piezoelectric components are often employed, necessitating an adaptation of the previously developed method. The alteration in geometry introduces some advantages. Accordingly, there is no longer any requirement to modify the electrode structure in order to enhance sensitivity. The method to estimate the material parameters presented here consists of a total of three stages. An initial, approximate estimation of the material parameters is determined using analytical approximations for the resonance frequencies from the IEEE standard. These values are optimised in an inverse procedure that employs analytic expressions for the electrical impedance of piezoelectric rings as the forward model. Further refinement is achieved by using Finite Element (FE) simulations as the forward model again in an inverse procedure. The method is applied to electrical impedance measurement data, yielding material parameters for hard piezoelectric rings. The result shows a good agreement between the simulation and measurement results, indicating realistic material parameter values. author: - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Friesen O, Claes L, Feldmann N, Henning B. Estimation of piezoelectric material parameters of ring-shaped specimens. tm - Technisches Messen. Published online 2024. doi:https://doi.org/10.1515/teme-2024-0107 apa: Friesen, O., Claes, L., Feldmann, N., & Henning, B. (2024). Estimation of piezoelectric material parameters of ring-shaped specimens. Tm - Technisches Messen. https://doi.org/10.1515/teme-2024-0107 bibtex: '@article{Friesen_Claes_Feldmann_Henning_2024, title={Estimation of piezoelectric material parameters of ring-shaped specimens}, DOI={https://doi.org/10.1515/teme-2024-0107}, journal={tm - Technisches Messen}, publisher={De Gruyter}, author={Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}, year={2024} }' chicago: Friesen, Olga, Leander Claes, Nadine Feldmann, and Bernd Henning. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” Tm - Technisches Messen, 2024. https://doi.org/10.1515/teme-2024-0107. ieee: 'O. Friesen, L. Claes, N. Feldmann, and B. Henning, “Estimation of piezoelectric material parameters of ring-shaped specimens,” tm - Technisches Messen, 2024, doi: https://doi.org/10.1515/teme-2024-0107.' mla: Friesen, Olga, et al. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” Tm - Technisches Messen, De Gruyter, 2024, doi:https://doi.org/10.1515/teme-2024-0107. short: O. Friesen, L. Claes, N. Feldmann, B. Henning, Tm - Technisches Messen (2024). date_created: 2024-10-29T09:07:00Z date_updated: 2026-01-05T07:59:24Z department: - _id: '49' doi: https://doi.org/10.1515/teme-2024-0107 language: - iso: eng project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 publication_status: published publisher: De Gruyter status: public title: Estimation of piezoelectric material parameters of ring-shaped specimens type: journal_article user_id: '11829' year: '2024' ... --- _id: '54314' alternative_title: - Neural networks for initial value estimation in the identification of piezoelectric material parameters article_type: original author: - first_name: Kevin full_name: Koch, Kevin last_name: Koch - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost citation: ama: Koch K, Claes L, Jurgelucks B, Meihost L. Neuronale Netze zur Startwertschätzung bei der Identifikation piezoelektrischer Materialparameter. tm - Technisches Messen. Published online 2024. doi:10.1515/teme-2024-0099 apa: Koch, K., Claes, L., Jurgelucks, B., & Meihost, L. (2024). Neuronale Netze zur Startwertschätzung bei der Identifikation piezoelektrischer Materialparameter. Tm - Technisches Messen. https://doi.org/10.1515/teme-2024-0099 bibtex: '@article{Koch_Claes_Jurgelucks_Meihost_2024, title={Neuronale Netze zur Startwertschätzung bei der Identifikation piezoelektrischer Materialparameter}, DOI={10.1515/teme-2024-0099}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Koch, Kevin and Claes, Leander and Jurgelucks, Benjamin and Meihost, Lars}, year={2024} }' chicago: Koch, Kevin, Leander Claes, Benjamin Jurgelucks, and Lars Meihost. “Neuronale Netze Zur Startwertschätzung Bei Der Identifikation Piezoelektrischer Materialparameter.” Tm - Technisches Messen, 2024. https://doi.org/10.1515/teme-2024-0099. ieee: 'K. Koch, L. Claes, B. Jurgelucks, and L. Meihost, “Neuronale Netze zur Startwertschätzung bei der Identifikation piezoelektrischer Materialparameter,” tm - Technisches Messen, 2024, doi: 10.1515/teme-2024-0099.' mla: Koch, Kevin, et al. “Neuronale Netze Zur Startwertschätzung Bei Der Identifikation Piezoelektrischer Materialparameter.” Tm - Technisches Messen, Walter de Gruyter GmbH, 2024, doi:10.1515/teme-2024-0099. short: K. Koch, L. Claes, B. Jurgelucks, L. Meihost, Tm - Technisches Messen (2024). date_created: 2024-05-17T08:26:55Z date_updated: 2026-01-05T07:59:09Z department: - _id: '49' doi: 10.1515/teme-2024-0099 language: - iso: eng main_file_link: - url: https://www.degruyter.com/document/doi/10.1515/teme-2024-0099/html project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: tm - Technisches Messen publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: Neuronale Netze zur Startwertschätzung bei der Identifikation piezoelektrischer Materialparameter type: journal_article user_id: '11829' year: '2024' ... --- _id: '57820' article_number: '113600' author: - first_name: Vanja full_name: Nikolić, Vanja last_name: Nikolić - first_name: Michael full_name: Winkler, Michael id: '31496' last_name: Winkler citation: ama: Nikolić V, Winkler M. L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation. Nonlinear Analysis. 2024;247. doi:10.1016/j.na.2024.113600 apa: Nikolić, V., & Winkler, M. (2024). L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation. Nonlinear Analysis, 247, Article 113600. https://doi.org/10.1016/j.na.2024.113600 bibtex: '@article{Nikolić_Winkler_2024, title={L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation}, volume={247}, DOI={10.1016/j.na.2024.113600}, number={113600}, journal={Nonlinear Analysis}, publisher={Elsevier BV}, author={Nikolić, Vanja and Winkler, Michael}, year={2024} }' chicago: Nikolić, Vanja, and Michael Winkler. “L∞ Blow-up in the Jordan-Moore-Gibson-Thompson Equation.” Nonlinear Analysis 247 (2024). https://doi.org/10.1016/j.na.2024.113600. ieee: 'V. Nikolić and M. Winkler, “L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation,” Nonlinear Analysis, vol. 247, Art. no. 113600, 2024, doi: 10.1016/j.na.2024.113600.' mla: Nikolić, Vanja, and Michael Winkler. “L∞ Blow-up in the Jordan-Moore-Gibson-Thompson Equation.” Nonlinear Analysis, vol. 247, 113600, Elsevier BV, 2024, doi:10.1016/j.na.2024.113600. short: V. Nikolić, M. Winkler, Nonlinear Analysis 247 (2024). date_created: 2024-12-18T07:13:19Z date_updated: 2026-01-05T08:02:36Z department: - _id: '90' doi: 10.1016/j.na.2024.113600 intvolume: ' 247' language: - iso: eng project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: Nonlinear Analysis publication_identifier: issn: - 0362-546X publication_status: published publisher: Elsevier BV status: public title: L∞ blow-up in the Jordan-Moore-Gibson-Thompson equation type: journal_article user_id: '11829' volume: 247 year: '2024' ... --- _id: '61756' author: - first_name: Claus full_name: Scheidemann, Claus id: '38259' last_name: Scheidemann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Scheidemann C, Hemsel T, Sextro W. Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers. In: ; 2024.' apa: Scheidemann, C., Hemsel, T., & Sextro, W. (2024). Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers. 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany. bibtex: '@inproceedings{Scheidemann_Hemsel_Sextro_2024, title={Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers}, author={Scheidemann, Claus and Hemsel, Tobias and Sextro, Walter}, year={2024} }' chicago: Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers,” 2024. ieee: C. Scheidemann, T. Hemsel, and W. Sextro, “Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers,” presented at the 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany, 2024. mla: Scheidemann, Claus, et al. Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers. 2024. short: 'C. Scheidemann, T. Hemsel, W. Sextro, in: 2024.' conference: end_date: 2024-07-26 location: Hannover, Germany name: 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA) start_date: 2024-07-22 date_created: 2025-10-08T14:28:33Z date_updated: 2026-04-15T11:16:18Z ddc: - '620' department: - _id: '151' file: - access_level: open_access content_type: application/pdf creator: hemsel date_created: 2026-01-30T14:50:06Z date_updated: 2026-03-02T11:00:13Z file_id: '63820' file_name: IWPMA_2024_Scheidemann.pdf file_size: 1984385 relation: main_file file_date_updated: 2026-03-02T11:00:13Z has_accepted_license: '1' language: - iso: eng oa: '1' project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers type: conference user_id: '210' year: '2024' ... --- _id: '53822' abstract: - lang: ger text: "Piezoelektrische Keramiken finden sowohl in Sensoren als auch in Aktoren Anwendung. Bei Hochleistungs-Ultraschallanwendungen sind diese Komponenten erheblichen elektrischen und mechanischen Belastungen ausgesetzt, was zum Auftreten nichtlinearer Effekte führt. Um das nichtlineare Materialverhalten piezoelektrischer Keramiken zu charakterisieren, kann eine statische mechanische Last aufgebracht werden, die den mechanischen Arbeitspunkt verschiebt. Durch Variation dieser statischen mechanischen Belastung kann das lineare Verhalten in jedem Betriebspunkt charakterisiert werden, woraufhin die nichtlinearen Eigenschaften des Materials angenähert werden können. Allerdings ist die Sicherstellung einer homogenen mechanischen Last anspruchsvoll. Alternativ kann eine hydrostatische Belastung realisiert werden, indem die Probe in einen Behälter gegeben wird, der mit unter Druck stehendem Fluid gefüllt ist. Dadurch wird eine gleichmäßige Lastverteilung über die Oberfläche der Probe erreicht.\r\n\r\nIn diesem Beitrag wird ein Versuchsaufbau zur Durchführung elektrischer Impedanzmessungen an piezoelektrischen Keramiken in einem Druckbehälter vorgestellt. Die Probe wird im Inneren des Druckbehälters elektrisch kontaktiert. Unter Verwendung von unter Druck stehendem Argon wird auf diese Weise die Messung der elektrischen Impedanz unter hydrostatischer Last von bis zu 200 bar ermöglicht. Anschließend wird ein inverses Verfahren angewendet, um die Materialparameter in Abhängigkeit von der aufgebrachten Last zu ermitteln." author: - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen orcid: 0009-0007-5598-9484 - first_name: Muhammad Ahsan full_name: Pasha, Muhammad Ahsan last_name: Pasha - first_name: Max full_name: Schwengelbeck, Max last_name: Schwengelbeck - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Elmar full_name: Baumhögger, Elmar id: '15164' last_name: Baumhögger - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Friesen O, Pasha MA, Schwengelbeck M, Claes L, Baumhögger E, Henning B. Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last. In: Fortschritte der Akustik - DAGA 2024. ; 2024:1117–1120.' apa: Friesen, O., Pasha, M. A., Schwengelbeck, M., Claes, L., Baumhögger, E., & Henning, B. (2024). Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last. Fortschritte der Akustik - DAGA 2024, 1117–1120. bibtex: '@inproceedings{Friesen_Pasha_Schwengelbeck_Claes_Baumhögger_Henning_2024, title={Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last}, booktitle={Fortschritte der Akustik - DAGA 2024}, author={Friesen, Olga and Pasha, Muhammad Ahsan and Schwengelbeck, Max and Claes, Leander and Baumhögger, Elmar and Henning, Bernd}, year={2024}, pages={1117–1120} }' chicago: Friesen, Olga, Muhammad Ahsan Pasha, Max Schwengelbeck, Leander Claes, Elmar Baumhögger, and Bernd Henning. “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last.” In Fortschritte der Akustik - DAGA 2024, 1117–1120, 2024. ieee: O. Friesen, M. A. Pasha, M. Schwengelbeck, L. Claes, E. Baumhögger, and B. Henning, “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last,” in Fortschritte der Akustik - DAGA 2024, Hannover, 2024, pp. 1117–1120. mla: Friesen, Olga, et al. “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last.” Fortschritte der Akustik - DAGA 2024, 2024, pp. 1117–1120. short: 'O. Friesen, M.A. Pasha, M. Schwengelbeck, L. Claes, E. Baumhögger, B. Henning, in: Fortschritte der Akustik - DAGA 2024, 2024, pp. 1117–1120.' conference: end_date: 2024-03-21 location: Hannover name: DAGA 2024 - 50. JAHRESTAGUNG FÜR AKUSTIK start_date: 2024-03-18 date_created: 2024-05-02T13:25:29Z date_updated: 2026-06-18T12:04:01Z ddc: - '620' file: - access_level: open_access content_type: application/pdf creator: ofriesen date_created: 2024-05-02T13:38:37Z date_updated: 2024-05-02T14:07:24Z file_id: '53826' file_name: daga2024friesen.pdf file_size: 453108 relation: main_file file_date_updated: 2024-05-02T14:07:24Z has_accepted_license: '1' language: - iso: ger oa: '1' page: 1117–1120 project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: Fortschritte der Akustik - DAGA 2024 publication_status: published status: public title: Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last type: conference user_id: '15164' year: '2024' ... --- _id: '51117' author: - first_name: Claus full_name: Scheidemann, Claus id: '38259' last_name: Scheidemann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Scheidemann C, Hemsel T, Friesen O, Claes L, Sextro W. Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics. In: ; 2023.' apa: Scheidemann, C., Hemsel, T., Friesen, O., Claes, L., & Sextro, W. (2023). Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics. 7th International Conference on Advanced Electromaterials (ICAE 2023), Jeju, Korea. bibtex: '@inproceedings{Scheidemann_Hemsel_Friesen_Claes_Sextro_2023, title={Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics}, author={Scheidemann, Claus and Hemsel, Tobias and Friesen, Olga and Claes, Leander and Sextro, Walter}, year={2023} }' chicago: Scheidemann, Claus, Tobias Hemsel, Olga Friesen, Leander Claes, and Walter Sextro. “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” 2023. ieee: C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, and W. Sextro, “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” presented at the 7th International Conference on Advanced Electromaterials (ICAE 2023), Jeju, Korea, 2023. mla: Scheidemann, Claus, et al. Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics. 2023. short: 'C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, W. Sextro, in: 2023.' conference: end_date: 2023-11-03 location: Jeju, Korea name: 7th International Conference on Advanced Electromaterials (ICAE 2023) start_date: 2023-10-31 date_created: 2024-02-01T15:55:44Z date_updated: 2026-03-02T10:59:13Z ddc: - '620' department: - _id: '151' - _id: '49' file: - access_level: open_access content_type: application/pdf creator: hemsel date_created: 2026-01-30T07:15:31Z date_updated: 2026-03-02T10:59:13Z file_id: '63815' file_name: Sch23_ICAE_2023.pdf file_size: 608243 relation: main_file file_date_updated: 2026-03-02T10:59:13Z has_accepted_license: '1' language: - iso: eng oa: '1' project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics type: conference user_id: '210' year: '2023' ... --- _id: '45445' author: - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Veronika full_name: Schulze, Veronika last_name: Schulze - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost - first_name: Henrik full_name: Kuhlmann, Henrik last_name: Kuhlmann - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Andrea full_name: Walther, Andrea last_name: Walther - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Claes L, Feldmann N, Schulze V, et al. Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample. Journal of Sensors and Sensor Systems. 2023;12(1):163–173. doi:10.5194/jsss-12-163-2023 apa: Claes, L., Feldmann, N., Schulze, V., Meihost, L., Kuhlmann, H., Jurgelucks, B., Walther, A., & Henning, B. (2023). Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample. Journal of Sensors and Sensor Systems, 12(1), 163–173. https://doi.org/10.5194/jsss-12-163-2023 bibtex: '@article{Claes_Feldmann_Schulze_Meihost_Kuhlmann_Jurgelucks_Walther_Henning_2023, title={Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample}, volume={12}, DOI={10.5194/jsss-12-163-2023}, number={1}, journal={Journal of Sensors and Sensor Systems}, author={Claes, Leander and Feldmann, Nadine and Schulze, Veronika and Meihost, Lars and Kuhlmann, Henrik and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}, year={2023}, pages={163–173} }' chicago: 'Claes, Leander, Nadine Feldmann, Veronika Schulze, Lars Meihost, Henrik Kuhlmann, Benjamin Jurgelucks, Andrea Walther, and Bernd Henning. “Inverse Procedure for Measuring Piezoelectric Material Parameters Using a Single Multi-Electrode Sample.” Journal of Sensors and Sensor Systems 12, no. 1 (2023): 163–173. https://doi.org/10.5194/jsss-12-163-2023.' ieee: 'L. Claes et al., “Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample,” Journal of Sensors and Sensor Systems, vol. 12, no. 1, pp. 163–173, 2023, doi: 10.5194/jsss-12-163-2023.' mla: Claes, Leander, et al. “Inverse Procedure for Measuring Piezoelectric Material Parameters Using a Single Multi-Electrode Sample.” Journal of Sensors and Sensor Systems, vol. 12, no. 1, 2023, pp. 163–173, doi:10.5194/jsss-12-163-2023. short: L. Claes, N. Feldmann, V. Schulze, L. Meihost, H. Kuhlmann, B. Jurgelucks, A. Walther, B. Henning, Journal of Sensors and Sensor Systems 12 (2023) 163–173. date_created: 2023-06-01T12:55:43Z date_updated: 2026-01-05T07:57:13Z department: - _id: '49' doi: 10.5194/jsss-12-163-2023 intvolume: ' 12' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://jsss.copernicus.org/articles/12/163/2023/jsss-12-163-2023.pdf oa: '1' page: 163–173 project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: Journal of Sensors and Sensor Systems publication_status: published status: public title: Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample type: journal_article user_id: '11829' volume: 12 year: '2023' ... --- _id: '45455' author: - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks citation: ama: Claes L, Meihost L, Jurgelucks B. Inverse Procedure for the Identification of Piezoelectric Material Parameters Supported by Dense Neural Networks.; 2023. apa: Claes, L., Meihost, L., & Jurgelucks, B. (2023). Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks. bibtex: '@book{Claes_Meihost_Jurgelucks_2023, place={GAMM Annual Meeting, Dresden}, title={Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks}, author={Claes, Leander and Meihost, Lars and Jurgelucks, Benjamin}, year={2023} }' chicago: Claes, Leander, Lars Meihost, and Benjamin Jurgelucks. Inverse Procedure for the Identification of Piezoelectric Material Parameters Supported by Dense Neural Networks. GAMM Annual Meeting, Dresden, 2023. ieee: L. Claes, L. Meihost, and B. Jurgelucks, Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks. GAMM Annual Meeting, Dresden, 2023. mla: Claes, Leander, et al. Inverse Procedure for the Identification of Piezoelectric Material Parameters Supported by Dense Neural Networks. 2023. short: L. Claes, L. Meihost, B. Jurgelucks, Inverse Procedure for the Identification of Piezoelectric Material Parameters Supported by Dense Neural Networks, GAMM Annual Meeting, Dresden, 2023. date_created: 2023-06-05T07:24:38Z date_updated: 2026-01-05T07:58:01Z department: - _id: '49' language: - iso: eng place: GAMM Annual Meeting, Dresden project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks type: misc user_id: '11829' year: '2023' ... --- _id: '45456' author: - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks citation: ama: Jurgelucks B. Parameter Identification of Piezoelectrics Improved by Neural Networks.; 2023. apa: Jurgelucks, B. (2023). Parameter Identification of Piezoelectrics improved by Neural Networks. bibtex: '@book{Jurgelucks_2023, place={GAMM Annual Meeting, Dresden}, title={Parameter Identification of Piezoelectrics improved by Neural Networks}, author={Jurgelucks, Benjamin}, year={2023} }' chicago: Jurgelucks, Benjamin. Parameter Identification of Piezoelectrics Improved by Neural Networks. GAMM Annual Meeting, Dresden, 2023. ieee: B. Jurgelucks, Parameter Identification of Piezoelectrics improved by Neural Networks. GAMM Annual Meeting, Dresden, 2023. mla: Jurgelucks, Benjamin. Parameter Identification of Piezoelectrics Improved by Neural Networks. 2023. short: B. Jurgelucks, Parameter Identification of Piezoelectrics Improved by Neural Networks, GAMM Annual Meeting, Dresden, 2023. date_created: 2023-06-05T07:27:42Z date_updated: 2026-01-05T07:58:17Z language: - iso: eng place: GAMM Annual Meeting, Dresden project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Parameter Identification of Piezoelectrics improved by Neural Networks type: misc user_id: '11829' year: '2023' ... --- _id: '45457' author: - first_name: Raphael full_name: Kuess, Raphael last_name: Kuess citation: ama: Kuess R. Parameter Identification in Piezoelectricity Based on All-at-Once and Reduced Regularization.; 2023. apa: Kuess, R. (2023). Parameter identification in piezoelectricity based on all-at-once and reduced regularization. bibtex: '@book{Kuess_2023, place={GAMM Annual Meeting, Dresden}, title={Parameter identification in piezoelectricity based on all-at-once and reduced regularization}, author={Kuess, Raphael}, year={2023} }' chicago: Kuess, Raphael. Parameter Identification in Piezoelectricity Based on All-at-Once and Reduced Regularization. GAMM Annual Meeting, Dresden, 2023. ieee: R. Kuess, Parameter identification in piezoelectricity based on all-at-once and reduced regularization. GAMM Annual Meeting, Dresden, 2023. mla: Kuess, Raphael. Parameter Identification in Piezoelectricity Based on All-at-Once and Reduced Regularization. 2023. short: R. Kuess, Parameter Identification in Piezoelectricity Based on All-at-Once and Reduced Regularization, GAMM Annual Meeting, Dresden, 2023. date_created: 2023-06-05T07:30:26Z date_updated: 2026-01-05T07:58:32Z language: - iso: eng place: GAMM Annual Meeting, Dresden project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Parameter identification in piezoelectricity based on all-at-once and reduced regularization type: misc user_id: '11829' year: '2023' ... --- _id: '6553' author: - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Veronika full_name: Schulze, Veronika last_name: Schulze - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Andrea full_name: Walther, Andrea last_name: Walther - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Claes L, Feldmann N, Schulze V, Jurgelucks B, Walther A, Henning B. Identification of piezoelectric material parameters using optimised multi-electrode specimens. In: Fortschritte Der Akustik - DAGA 2022. ; 2022:1326-1329.' apa: Claes, L., Feldmann, N., Schulze, V., Jurgelucks, B., Walther, A., & Henning, B. (2022). Identification of piezoelectric material parameters using optimised multi-electrode specimens. Fortschritte Der Akustik - DAGA 2022, 1326–1329. bibtex: '@inproceedings{Claes_Feldmann_Schulze_Jurgelucks_Walther_Henning_2022, title={Identification of piezoelectric material parameters using optimised multi-electrode specimens}, booktitle={Fortschritte der Akustik - DAGA 2022}, author={Claes, Leander and Feldmann, Nadine and Schulze, Veronika and Jurgelucks, Benjamin and Walther, Andrea and Henning, Bernd}, year={2022}, pages={1326–1329} }' chicago: Claes, Leander, Nadine Feldmann, Veronika Schulze, Benjamin Jurgelucks, Andrea Walther, and Bernd Henning. “Identification of Piezoelectric Material Parameters Using Optimised Multi-Electrode Specimens.” In Fortschritte Der Akustik - DAGA 2022, 1326–29, 2022. ieee: L. Claes, N. Feldmann, V. Schulze, B. Jurgelucks, A. Walther, and B. Henning, “Identification of piezoelectric material parameters using optimised multi-electrode specimens,” in Fortschritte der Akustik - DAGA 2022, Stuttgart, 2022, pp. 1326–1329. mla: Claes, Leander, et al. “Identification of Piezoelectric Material Parameters Using Optimised Multi-Electrode Specimens.” Fortschritte Der Akustik - DAGA 2022, 2022, pp. 1326–29. short: 'L. Claes, N. Feldmann, V. Schulze, B. Jurgelucks, A. Walther, B. Henning, in: Fortschritte Der Akustik - DAGA 2022, 2022, pp. 1326–1329.' conference: end_date: 2022-03-24 location: Stuttgart name: DAGA 2022 - 48. Jahrestagung für Akustik start_date: 2022-03-21 date_created: 2019-01-09T14:36:59Z date_updated: 2026-01-05T07:52:51Z ddc: - '620' department: - _id: '49' file: - access_level: closed content_type: application/pdf creator: leanderc date_created: 2022-03-28T14:21:06Z date_updated: 2022-03-28T14:21:06Z file_id: '30666' file_name: daga2022 cla.pdf file_size: 1143917 relation: main_file success: 1 file_date_updated: 2022-03-28T14:21:06Z has_accepted_license: '1' language: - iso: eng page: 1326-1329 project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: Fortschritte der Akustik - DAGA 2022 status: public title: Identification of piezoelectric material parameters using optimised multi-electrode specimens type: conference user_id: '11829' year: '2022' ... --- _id: '6558' author: - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Friesen O, Claes L, Feldmann N, Henning B. Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.; 2022. apa: Friesen, O., Claes, L., Feldmann, N., & Henning, B. (2022). Estimation of piezoelectric material parameters of ring-shaped specimens. bibtex: '@book{Friesen_Claes_Feldmann_Henning_2022, place={International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)}, title={Estimation of piezoelectric material parameters of ring-shaped specimens}, author={Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}, year={2022} }' chicago: Friesen, Olga, Leander Claes, Nadine Feldmann, and Bernd Henning. Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens. International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022. ieee: O. Friesen, L. Claes, N. Feldmann, and B. Henning, Estimation of piezoelectric material parameters of ring-shaped specimens. International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022. mla: Friesen, Olga, et al. Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens. 2022. short: O. Friesen, L. Claes, N. Feldmann, B. Henning, Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens, International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022. date_created: 2019-01-09T14:37:05Z date_updated: 2026-01-05T08:02:08Z department: - _id: '49' language: - iso: eng place: International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA) project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' status: public title: Estimation of piezoelectric material parameters of ring-shaped specimens type: misc user_id: '11829' year: '2022' ... --- _id: '6563' abstract: - lang: ger text: Designprozesse von Schallwandlern werden durch zunehmende Rechenkapazitäten immer mehr durch simulative Betrachtungen unterstützt. Dabei ist vor allem die Wahl der Materialparameter der verwendeten Materialien wichtig für ein realitätsnahes Simulationsergebnis. Bei Schallwandlern werden häufig Piezokeramiken als aktive Elemente genutzt, welche sich durch eine Verkopplung mechanischer und elektrischer Eigenschaften auszeichnen. Zur Bestimmung ihrer Materialparameter stellt der IEEE Standard on Piezoelectricity ein standardisiertes Verfahren dar. Dazu sind fünf Impedanzmessungen an vier unterschiedlich gefertigten Probekörpergeometrien notwendig. Da an jedem einzelnen Probekörper nur eine Untermenge aller notwendigen Materialparameter bestimmt werden kann, werden diese dann zu einem kompletten Materialparametersatz zusammengefügt. Aufgrund der unterschiedlichen Prozessbedingungen, bei denen die jeweiligen Probekörper hergestellt werden, ist dieser Materialparametersatz jedoch inkonsistent und kann nie das Verhalten einer einzelnen Probe beschreiben. Daher wird in der vorliegenden Arbeit ein Messverfahren entwickelt, mit dem es möglich ist, alle relevanten Materialparameter unter besonderer Berücksichtigung von Dämpfung an einem einzelnen Probekörper allein durch Impedanzmessungen zu bestimmen. Als Probekörper wird dazu eine in der Anwendung häufig verwendete Scheibengeometrie verwendet. Um eine hinreichend hohe Sensitivität auf alle Materialparameter zu gewährleisten, wird diese mit einer optimierten Elektrodentopologie gefertigt. Da in diesem Fall keine analytische Betrachtung mehr möglich ist, wird das Messverfahren durch einen inversen Ansatz realisiert. - lang: eng text: Design processes of ultrasonic transducers become increasingly simulation-driven due to rising computational capabilities. Therewithin, the choice of the material parameters for modelling the materials used is particularly important for a realistic simulation result. Piezoceramics, which couple mechanic and electrical properties, are often used as active elements in ultrasonic transducers.The IEEE Standard on Piezoelectricity is a standardised procedure for determining these parameters that requires five impedance measurements on four piezocermics of different geometry. Since only a subset of all necessary material parameters can be determined for each individual specimen, these are then combined to form a complete set of material parameters. Due to different processing conditions for each specimen, this set of material parameters is inconsistent and cannot describe the behaviour of a single specimen appropriately. Therefore, in the present thesis, a method is developed with enables the determination of all relevant material parameters including damping on a single piezocermic by means of electrical impedance measurements alone. A piezoelectric ceramic with disc-shaped geometry, which is frequently used in applications, is used as a specimen.In order to ensure a sufficiently high sensitivity to all material parameters, it is manufactured with an optimised electrode topology. Because in this case analytical solutions, which relate the measurement quantities to the material parameters, do not exist, the measurement method is implemented using an inverse approach. author: - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann citation: ama: Feldmann N.   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn; 2021. doi:10.17619/UNIPB/1-1264 apa: Feldmann, N. (2021).   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-1264 bibtex: '@book{Feldmann_2021, title={  Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers}, DOI={10.17619/UNIPB/1-1264}, publisher={Universität Paderborn}, author={Feldmann, Nadine}, year={2021} }' chicago: Feldmann, Nadine.   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021. https://doi.org/10.17619/UNIPB/1-1264. ieee: N. Feldmann,   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021. mla: Feldmann, Nadine.   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021, doi:10.17619/UNIPB/1-1264. short: N. Feldmann,   Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers, Universität Paderborn, 2021. date_created: 2019-01-09T14:37:11Z date_updated: 2026-01-05T07:55:46Z department: - _id: '49' doi: 10.17619/UNIPB/1-1264 language: - iso: ger main_file_link: - open_access: '1' url: https://digital.ub.uni-paderborn.de/urn/urn:nbn:de:hbz:466:2-40232 oa: '1' page: '184' project: - _id: '90' name: 'ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums' - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publisher: Universität Paderborn status: public supervisor: - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning - first_name: Andrea full_name: Walther, Andrea last_name: Walther title: "\t Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers" type: dissertation user_id: '11829' year: '2021' ... --- _id: '21341' abstract: - lang: eng text: The progress in numerical methods and simulation tools promotes the use of inverse problems in material characterisation problems. A newly developed procedure can be used to identify the behaviour of piezoceramic discs over a wide frequency range using a single specimen via fitting simulated and measured impedances by optimising the underlying material parameters. Since there is no generally accepted damping model for piezoelectric ceramics, several mechanical damping models are examined for the material identification. Three models have been chosen and their ability to replicate the measured impedances is evaluated. On the one hand, the common Rayleigh model is considered as a reference. On the other hand, a Zener model and a model using complex constants are extended to model the transversely isotropic material. As the Rayleigh model is only valid for a limited frequency range, it fails to model the broadband behaviour of the material. The model using complex constants leads to the best fit over a wide frequency range while at the same time only adding three additional parameters for modelling damping. Thus, damping can be assumed approximately frequency-independent in piezoceramics. author: - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Veronika full_name: Schulze, Veronika last_name: Schulze - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Lars full_name: Meihost, Lars id: '24769' last_name: Meihost - first_name: Andrea full_name: Walther, Andrea last_name: Walther - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Feldmann N, Schulze V, Claes L, et al. Modelling damping in piezoceramics: A comparative study. tm - Technisches Messen. 2021;88(5):294-302. doi:10.1515/teme-2020-0096' apa: 'Feldmann, N., Schulze, V., Claes, L., Jurgelucks, B., Meihost, L., Walther, A., & Henning, B. (2021). Modelling damping in piezoceramics: A comparative study. Tm - Technisches Messen, 88(5), 294–302. https://doi.org/10.1515/teme-2020-0096' bibtex: '@article{Feldmann_Schulze_Claes_Jurgelucks_Meihost_Walther_Henning_2021, title={Modelling damping in piezoceramics: A comparative study}, volume={88}, DOI={10.1515/teme-2020-0096}, number={5}, journal={tm - Technisches Messen}, author={Feldmann, Nadine and Schulze, Veronika and Claes, Leander and Jurgelucks, Benjamin and Meihost, Lars and Walther, Andrea and Henning, Bernd}, year={2021}, pages={294–302} }' chicago: 'Feldmann, Nadine, Veronika Schulze, Leander Claes, Benjamin Jurgelucks, Lars Meihost, Andrea Walther, and Bernd Henning. “Modelling Damping in Piezoceramics: A Comparative Study.” Tm - Technisches Messen 88, no. 5 (2021): 294–302. https://doi.org/10.1515/teme-2020-0096.' ieee: 'N. Feldmann et al., “Modelling damping in piezoceramics: A comparative study,” tm - Technisches Messen, vol. 88, no. 5, pp. 294–302, 2021, doi: 10.1515/teme-2020-0096.' mla: 'Feldmann, Nadine, et al. “Modelling Damping in Piezoceramics: A Comparative Study.” Tm - Technisches Messen, vol. 88, no. 5, 2021, pp. 294–302, doi:10.1515/teme-2020-0096.' short: N. Feldmann, V. Schulze, L. Claes, B. Jurgelucks, L. Meihost, A. Walther, B. Henning, Tm - Technisches Messen 88 (2021) 294–302. date_created: 2021-03-01T14:49:51Z date_updated: 2026-01-05T07:54:13Z department: - _id: '49' doi: 10.1515/teme-2020-0096 intvolume: ' 88' issue: '5' language: - iso: eng page: 294 - 302 project: - _id: '90' name: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 - 0171-8096 publication_status: published quality_controlled: '1' status: public title: 'Modelling damping in piezoceramics: A comparative study' type: journal_article user_id: '11829' volume: 88 year: '2021' ... --- _id: '22012' author: - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Benjamin full_name: Jurgelucks, Benjamin last_name: Jurgelucks - first_name: Veronika full_name: Schulze, Veronika last_name: Schulze - first_name: Stephan full_name: Schmidt, Stephan last_name: Schmidt - first_name: Andrea full_name: Walther, Andrea last_name: Walther - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: 'Claes L, Feldmann N, Jurgelucks B, et al. Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation. In: ; 2021:237-238. doi:10.5162/SMSI2021/A10.1' apa: Claes, L., Feldmann, N., Jurgelucks, B., Schulze, V., Schmidt, S., Walther, A., & Henning, B. (2021). Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation. 237–238. https://doi.org/10.5162/SMSI2021/A10.1 bibtex: '@inproceedings{Claes_Feldmann_Jurgelucks_Schulze_Schmidt_Walther_Henning_2021, title={Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation}, DOI={10.5162/SMSI2021/A10.1}, author={Claes, Leander and Feldmann, Nadine and Jurgelucks, Benjamin and Schulze, Veronika and Schmidt, Stephan and Walther, Andrea and Henning, Bernd}, year={2021}, pages={237–238} }' chicago: Claes, Leander, Nadine Feldmann, Benjamin Jurgelucks, Veronika Schulze, Stephan Schmidt, Andrea Walther, and Bernd Henning. “Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation,” 237–38, 2021. https://doi.org/10.5162/SMSI2021/A10.1. ieee: 'L. Claes et al., “Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation,” Nürnberg, 2021, pp. 237–238, doi: 10.5162/SMSI2021/A10.1.' mla: Claes, Leander, et al. Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation. 2021, pp. 237–38, doi:10.5162/SMSI2021/A10.1. short: 'L. Claes, N. Feldmann, B. Jurgelucks, V. Schulze, S. Schmidt, A. Walther, B. Henning, in: 2021, pp. 237–238.' conference: location: Nürnberg name: Sensor and Measurement Science International date_created: 2021-05-06T16:25:42Z date_updated: 2026-01-05T07:54:28Z department: - _id: '49' doi: 10.5162/SMSI2021/A10.1 language: - iso: eng page: 237-238 project: - _id: '90' name: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication_identifier: unknown: - 978-3-9819376-4-0 status: public title: Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation type: conference user_id: '11829' year: '2021' ...