Hysteresis modeling, identification and control for magnetorheological actuators
ENG- With the well-developed levels of science and technology, there has been a significant increase in the daily needs for higher comfort and higher safety on either private automobiles or public transportation. The objective and sometimes subjective feelings of comfort and stability work as the ke...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/695890 |
| Acceso en línea: | http://hdl.handle.net/10803/695890 |
| Access Level: | acceso embargado |
| Palabra clave: | Amortidors MR Amortiguadores MR MR dampers Amortidors magnetoreològics Amortiguadores magnetoreológicos Magneto-rheological dampers Histèresi magnètica Histéresis magnética Magnetic hysteresis Model Bouc-Wen Modelo Bouc-Wen Bouc-Wen model λ-skyhook Control de corrent Control de corriente Current control Control de flux Control de flujo Flux control Suspensió Suspensión Suspension 621.3 629 |
| Sumario: | ENG- With the well-developed levels of science and technology, there has been a significant increase in the daily needs for higher comfort and higher safety on either private automobiles or public transportation. The objective and sometimes subjective feelings of comfort and stability work as the key metrics in the perspective of the evaluation of overall vehicle performance. Within the suspension system, shock absorbers play a crucial role in enhancing passengers’ satisfaction, in particular, the magneto-rheological (MR) dampers known due to their superior comfort and performance characteristics. However, the effectiveness of MR dampers is influenced not only by their performance envelopes but also by the employed control strategies. It has been shown that the integration of advanced control strategies with optimized models can significantly enhance the performance and comfort levels provided by MR dampers, such that delivers a more refined and satisfying ride experience for passengers. In this dissertation, the author presents a modified Bouc-Wen model designed to address the issues of force roll-off effects that are present in traditional Bouc-Wen models, including Spencer’s enhanced Bouc-Wen model. While Spencer’s model already mitigates force roll-off and reduces inertial effects at lower velocities, it remains heavily dependent on accurately identified parameters and is computationally intensive. However, it should be noted that the inertial effects were not comprehensively analyzed in this study due to the limited range of frequencies tested. The results of comparing testing data against the predictions delivered of the proposed promised the accuracy of the proposed modified Bouc-Wen model |
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