Listar LIM - Artigos por autor "Dopico, Daniel"
Mostrando ítems 1-5 de 5
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Augmented Lagrangian index-3 semi-recursive formulations with projections: Direct sensitivity analysis
López Varela, Álvaro; Dopico, Daniel; Luaces, Alberto (Springer, 2023-08-24)[Abstract] Sensitivity analysis represents a powerful tool for the optimization of multibody system dynamics. The performance of a gradient-based optimization algorithm is strongly tied to the dynamic and the sensitivity ... -
Behaviour of Augmented Lagrangian and Hamiltonian Methods for Multibody Dynamics in the Proximity of Singular Configurations
González Varela, Francisco Javier; Dopico, Daniel; Pastorino, Roland; Cuadrado, Javier (2016-04)[Abstract] Augmented Lagrangian methods represent an efficient way to carry out the forward-dynamics simulation of mechanical systems. These algorithms introduce the constraint forces in the dynamic equations of the system ... -
Computational structural analysis of spatial multibody systems based on mobility criteria
Celdran Caceres, Ana; Saura, Mariano; Dopico, Daniel (Elsevier, 2022-06-22)[Abstract] Computational efficiency is a critical aspect of multibody dynamics. Recent developments in linear algebra libraries and hardware architectures allow the multibody community to improve the performance of their ... -
Direct Sensitivity Analysis of Multibody Systems With Holonomic and Nonholonomic Constraints via an Index-3 Augmented Lagrangian Formulation With Projections
Dopico, Daniel; González Varela, Francisco Javier; Luaces, Alberto; Saura, Mariano; García-Vallejo, Daniel (2018)[Abstract] Optimizing the dynamic response of mechanical systems is often a necessary step during the early stages of product development cycle. This is a complex problem that requires to carry out the sensitivity analysis ... -
On the effect of linear algebra implementations in real-time multibody system dynamics
González Varela, Francisco Javier; Dopico, Daniel; González Castro, Manuel Jesús; Luaces, Alberto (Springer, 2007)[Abstract] This paper compares the efficiency of multibody system (MBS) dynamic simulation codes that rely on different implementations of linear algebra operations. The dynamics of an N-loop four-bar mechanism has been ...