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Smart Structures and Systems Volume 15, Number 4, April 2015 , pages 931-947 DOI: https://doi.org/10.12989/.2015.15.4.931 |
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Design of intelligent control strategies using a magnetorheological damper for span structure |
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Ángela Hernández, Graciliano N. Marichal, Alfonso V. Poncela and Isidro Padrón
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| Abstract | ||
| This paper focuses on the design of an intelligent control system. The used techniques are based on Neuro Fuzzy approaches applied to a magnetorheological damper in order to reduce the vibrations over footbridges; it has been applied to the Science Museum Footbridge of Valladolid, particularly. A model of the footbridge and of the damper has been built using different simulation tools, and a successful comparison with the real footbridge and the real damper has been carried out. This simulated model has allowed the reproduction of the behaviour of the footbridge and damper when a pedestrian walks across the footbridge. Once it is determined that the simulation results are similar to real data, the control system is introduced into the model. In this sense, different strategies based on Neuro Fuzzy systems have been studied. In fact, an ANFIS (Artificial Neuro Fuzzy Inference System) method has also been used, in addition to an alternative Neuro Fuzzy approach. Several trials have been carried out, using both techniques, obtaining satisfactory results after using these techniques. | ||
| Key Words | ||
| vibration; magnetorheological; control; footbridge; neuro fuzzy; ANFIS | ||
| Address | ||
| Ángela Hernández: Departamento de Ingeniería de Sistemas y Automática, Arquitectura y Tecnología de Computadoras, Universidad de La Laguna, Edificio de Física y Matemáticas C/ Astrofísico Francisco Sánchez, s/n 38205 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain Graciliano N. Marichal and Isidro Padrón: Departamento de Ciencias de la Navegación, Ingeniería Marítima, Agraria e Hidráulica, Escuela Técnica Superior de Náutica, Máquinas y Radioelectrónica Naval, Universidad de La Laguna, Avenida Francisco Larroche s/n 38071,Santa Cruz de Tenerife, Spain Alfonso V. Poncela: 3Instituto de las Tecnologías Avanzadas de la Producción, ITAP, Universidad de Valladolid, Paseo del Cauce 59, 47011Valladolid. Spain | ||