H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridges
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
INVESTIGACIONEste recurso está restringido
http://dx.doi.org/10.1016/j.jsv.2013.12.030 |
Metadatos
Título
H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridgesFecha de publicación
2014-04Editor
ElsevierCita bibliográfica
LUU, M., et al. H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridges. Journal of Sound and Vibration, 2014, 333.9: 2421-2442.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0022460X14000029Palabras clave / Materias
Resumen
This work deals with the optimization of fluid viscous damper systems (FVDs) to reduce the resonant dynamic structural response of high-speed railway bridges by algebraic and numerical approaches. The presented method ... [+]
This work deals with the optimization of fluid viscous damper systems (FVDs) to reduce the resonant dynamic structural response of high-speed railway bridges by algebraic and numerical approaches. The presented method chooses the objective function based on the H∞ norm over the frequency band of interest. This function allows taking into account structural damping properties and minimizing simultaneously the structural response associated with multiple modes. Especially, the proposed objective function may also be extended to nonlinear problems to determine optimal parameters of nonlinear fluid viscous dampers which may be an interesting solution in applications where high force levels are expected in the dampers. Finally, the proposed method is validated through numerical simulations. The simulation results show that the optimal FVD coefficients obtained by using the presented method are more exact than those by the previous method. Besides, the effectiveness of the method for solving the problems with the contribution of high modes and the consideration of nonlinear FVDs is also proved. [-]
Publicado en
Journal of Sound and Vibration Volume 333, Issue 9, 28 April 2014Derechos de acceso
Copyright © 2015 Elsevier B.V. or its licensors or contributors.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Aparece en las colecciones
- EMC_Articles [832]